EduSahara™ Assignment
Name : Histogram
Chapter : Graphical Representation of Statistical Data
Grade : ICSE Grade IX
License : Non Commercial Use
Question 1
1.
Identify the class interval table for the given histogram.
  • (i)
    Class-Interval
    26 - 28
    28 - 30
    30 - 32
    32 - 34
    34 - 36
    36 - 38
    Frequency
    82
    20
    88
    35
    76
    135
  • (ii)
    Class-Interval
    26 - 28
    28 - 30
    30 - 32
    32 - 34
    34 - 36
    36 - 38
    Frequency
    82
    20
    83
    35
    76
    135
  • (iii)
    Class-Interval
    26 - 28
    28 - 30
    30 - 32
    32 - 34
    34 - 36
    36 - 38
    Frequency
    82
    20
    83
    37
    76
    135
  • (iv)
    Class-Interval
    26 - 28
    28 - 30
    30 - 32
    32 - 34
    34 - 36
    36 - 38
    Frequency
    82
    135
    83
    35
    76
    20
  • (v)
    Class-Interval
    26 - 28
    28 - 30
    30 - 32
    32 - 34
    34 - 36
    36 - 38
    Frequency
    82
    83
    20
    35
    76
    135
Question 2
2.
In a study of heart patients, the following observations are obtained. Identify the class interval table for the given histogram.
  • (i)
    Age (in years)
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    52 - 55
    55 - 58
    58 - 61
    No. of Patients
    30
    41
    28
    11
    14
    48
    32
  • (ii)
    Age (in years)
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    52 - 55
    55 - 58
    58 - 61
    No. of Patients
    30
    28
    41
    11
    14
    48
    32
  • (iii)
    Age (in years)
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    52 - 55
    55 - 58
    58 - 61
    No. of Patients
    30
    41
    31
    11
    14
    48
    32
  • (iv)
    Age (in years)
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    52 - 55
    55 - 58
    58 - 61
    No. of Patients
    30
    32
    28
    11
    14
    48
    41
  • (v)
    Age (in years)
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    52 - 55
    55 - 58
    58 - 61
    No. of Patients
    30
    41
    28
    16
    14
    48
    32
Question 3
3.
Identify the class interval table for the given histogram.
  • (i)
    Weight (in kg)
    50 - 55
    55 - 60
    60 - 65
    65 - 70
    70 - 75
    75 - 80
    No. of students
    7
    19
    22
    19
    24
    28
  • (ii)
    Weight (in kg)
    50 - 55
    55 - 60
    60 - 65
    65 - 70
    70 - 75
    75 - 80
    No. of students
    7
    22
    19
    19
    24
    28
  • (iii)
    Weight (in kg)
    50 - 55
    55 - 60
    60 - 65
    65 - 70
    70 - 75
    75 - 80
    No. of students
    7
    19
    22
    14
    24
    28
  • (iv)
    Weight (in kg)
    50 - 55
    55 - 60
    60 - 65
    65 - 70
    70 - 75
    75 - 80
    No. of students
    7
    19
    27
    19
    24
    28
  • (v)
    Weight (in kg)
    50 - 55
    55 - 60
    60 - 65
    65 - 70
    70 - 75
    75 - 80
    No. of students
    7
    28
    22
    19
    24
    19
Question 4
4.
Identify the class interval table for the given histogram.
  • (i)
    Class-Interval
    104 - 108
    109 - 113
    114 - 118
    119 - 123
    124 - 128
    129 - 133
    Frequency
    113
    87
    105
    84
    33
    132
  • (ii)
    Class-Interval
    104 - 108
    109 - 113
    114 - 118
    119 - 123
    124 - 128
    129 - 133
    Frequency
    113
    105
    87
    84
    33
    132
  • (iii)
    Class-Interval
    104 - 108
    109 - 113
    114 - 118
    119 - 123
    124 - 128
    129 - 133
    Frequency
    113
    132
    105
    84
    33
    87
  • (iv)
    Class-Interval
    104 - 108
    109 - 113
    114 - 118
    119 - 123
    124 - 128
    129 - 133
    Frequency
    113
    87
    108
    84
    33
    132
  • (v)
    Class-Interval
    104 - 108
    109 - 113
    114 - 118
    119 - 123
    124 - 128
    129 - 133
    Frequency
    113
    87
    105
    86
    33
    132
Question 5
5.
In a study of heart patients, the following observations are obtained. Identify the class interval table for the given histogram.
  • (i)
    Age (in years)
    56 - 61
    62 - 67
    68 - 73
    74 - 79
    80 - 85
    No. of Patients
    29
    40
    34
    31
    16
  • (ii)
    Age (in years)
    56 - 61
    62 - 67
    68 - 73
    74 - 79
    80 - 85
    No. of Patients
    29
    16
    37
    31
    40
  • (iii)
    Age (in years)
    56 - 61
    62 - 67
    68 - 73
    74 - 79
    80 - 85
    No. of Patients
    29
    42
    37
    31
    16
  • (iv)
    Age (in years)
    56 - 61
    62 - 67
    68 - 73
    74 - 79
    80 - 85
    No. of Patients
    29
    40
    37
    31
    16
  • (v)
    Age (in years)
    56 - 61
    62 - 67
    68 - 73
    74 - 79
    80 - 85
    No. of Patients
    29
    37
    40
    31
    16
Question 6
6.
Identify the class interval table for the given histogram.
  • (i)
    Weight (in kg)
    15 - 18
    19 - 22
    23 - 26
    27 - 30
    31 - 34
    No. of students
    16
    21
    9
    13
    12
  • (ii)
    Weight (in kg)
    15 - 18
    19 - 22
    23 - 26
    27 - 30
    31 - 34
    No. of students
    16
    9
    21
    13
    12
  • (iii)
    Weight (in kg)
    15 - 18
    19 - 22
    23 - 26
    27 - 30
    31 - 34
    No. of students
    16
    12
    21
    13
    9
  • (iv)
    Weight (in kg)
    15 - 18
    19 - 22
    23 - 26
    27 - 30
    31 - 34
    No. of students
    16
    13
    21
    13
    12
  • (v)
    Weight (in kg)
    15 - 18
    19 - 22
    23 - 26
    27 - 30
    31 - 34
    No. of students
    16
    9
    17
    13
    12
Question 7
7.
    • Heights of 152 students (in cm) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Height (in cm)
    130 - 136
    136 - 142
    142 - 148
    148 - 154
    154 - 160
    160 - 166
    166 - 172
    No. of students
    9
    35
    10
    41
    15
    28
    14
  • (ii)
    Height (in cm)
    130 - 136
    136 - 142
    142 - 148
    148 - 154
    154 - 160
    160 - 166
    166 - 172
    No. of students
    9
    14
    8
    41
    15
    28
    35
  • (iii)
    Height (in cm)
    130 - 136
    136 - 142
    142 - 148
    148 - 154
    154 - 160
    160 - 166
    166 - 172
    No. of students
    9
    10
    14
    41
    15
    28
    35
  • (iv)
    Height (in cm)
    130 - 136
    136 - 142
    142 - 148
    148 - 154
    154 - 160
    160 - 166
    166 - 172
    No. of students
    9
    14
    10
    46
    15
    28
    35
  • (v)
    Height (in cm)
    130 - 136
    136 - 142
    142 - 148
    148 - 154
    154 - 160
    160 - 166
    166 - 172
    No. of students
    9
    14
    10
    41
    15
    28
    35
Question 8
8.
    • Heights of 156 students (in cm) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Height (in cm)
    126 - 136
    137 - 147
    148 - 158
    159 - 169
    170 - 180
    181 - 191
    No. of students
    14
    28
    28
    50
    30
    6
  • (ii)
    Height (in cm)
    126 - 136
    137 - 147
    148 - 158
    159 - 169
    170 - 180
    181 - 191
    No. of students
    14
    6
    31
    50
    30
    28
  • (iii)
    Height (in cm)
    126 - 136
    137 - 147
    148 - 158
    159 - 169
    170 - 180
    181 - 191
    No. of students
    14
    6
    28
    48
    30
    28
  • (iv)
    Height (in cm)
    126 - 136
    137 - 147
    148 - 158
    159 - 169
    170 - 180
    181 - 191
    No. of students
    14
    6
    28
    50
    30
    28
  • (v)
    Height (in cm)
    126 - 136
    137 - 147
    148 - 158
    159 - 169
    170 - 180
    181 - 191
    No. of students
    14
    28
    6
    50
    30
    28
Question 9
9.
    • Heights of 115 plants (in cm) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Height (in cm)
    64 - 74
    74 - 84
    84 - 94
    94 - 104
    104 - 114
    114 - 124
    124 - 134
    No. of plants
    16
    10
    4
    6
    21
    25
    30
  • (ii)
    Height (in cm)
    64 - 74
    74 - 84
    84 - 94
    94 - 104
    104 - 114
    114 - 124
    124 - 134
    No. of plants
    16
    7
    10
    6
    21
    25
    30
  • (iii)
    Height (in cm)
    64 - 74
    74 - 84
    84 - 94
    94 - 104
    104 - 114
    114 - 124
    124 - 134
    No. of plants
    16
    10
    7
    6
    21
    25
    30
  • (iv)
    Height (in cm)
    64 - 74
    74 - 84
    84 - 94
    94 - 104
    104 - 114
    114 - 124
    124 - 134
    No. of plants
    16
    10
    7
    2
    21
    25
    30
  • (v)
    Height (in cm)
    64 - 74
    74 - 84
    84 - 94
    94 - 104
    104 - 114
    114 - 124
    124 - 134
    No. of plants
    16
    30
    7
    6
    21
    25
    10
Question 10
10.
    • Heights of 137 plants (in cm) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Height (in cm)
    51 - 58
    59 - 66
    67 - 74
    75 - 82
    83 - 90
    No. of plants
    13
    34
    19
    36
    35
  • (ii)
    Height (in cm)
    51 - 58
    59 - 66
    67 - 74
    75 - 82
    83 - 90
    No. of plants
    13
    35
    19
    36
    34
  • (iii)
    Height (in cm)
    51 - 58
    59 - 66
    67 - 74
    75 - 82
    83 - 90
    No. of plants
    13
    19
    35
    36
    34
  • (iv)
    Height (in cm)
    51 - 58
    59 - 66
    67 - 74
    75 - 82
    83 - 90
    No. of plants
    13
    31
    19
    36
    34
  • (v)
    Height (in cm)
    51 - 58
    59 - 66
    67 - 74
    75 - 82
    83 - 90
    No. of plants
    13
    35
    23
    36
    34
Question 11
11.
    • Ages of 172 students (in years) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Age (in years)
    20 - 26
    26 - 32
    32 - 38
    38 - 44
    44 - 50
    50 - 56
    No. of students
    34
    17
    29
    37
    29
    26
  • (ii)
    Age (in years)
    20 - 26
    26 - 32
    32 - 38
    38 - 44
    44 - 50
    50 - 56
    No. of students
    34
    17
    32
    37
    29
    26
  • (iii)
    Age (in years)
    20 - 26
    26 - 32
    32 - 38
    38 - 44
    44 - 50
    50 - 56
    No. of students
    34
    26
    29
    37
    29
    17
  • (iv)
    Age (in years)
    20 - 26
    26 - 32
    32 - 38
    38 - 44
    44 - 50
    50 - 56
    No. of students
    34
    17
    29
    41
    29
    26
  • (v)
    Age (in years)
    20 - 26
    26 - 32
    32 - 38
    38 - 44
    44 - 50
    50 - 56
    No. of students
    34
    29
    17
    37
    29
    26
Question 12
12.
    • Ages of 147 students (in years) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Age (in years)
    17 - 26
    27 - 36
    37 - 46
    47 - 56
    57 - 66
    No. of students
    11
    28
    32
    32
    41
  • (ii)
    Age (in years)
    17 - 26
    27 - 36
    37 - 46
    47 - 56
    57 - 66
    No. of students
    11
    35
    28
    32
    41
  • (iii)
    Age (in years)
    17 - 26
    27 - 36
    37 - 46
    47 - 56
    57 - 66
    No. of students
    11
    26
    35
    32
    41
  • (iv)
    Age (in years)
    17 - 26
    27 - 36
    37 - 46
    47 - 56
    57 - 66
    No. of students
    11
    41
    35
    32
    28
  • (v)
    Age (in years)
    17 - 26
    27 - 36
    37 - 46
    47 - 56
    57 - 66
    No. of students
    11
    28
    35
    32
    41
Question 13
13.
    • Scores of 159 students are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Score
    83 - 91
    91 - 99
    99 - 107
    107 - 115
    115 - 123
    123 - 131
    No. of students
    18
    46
    11
    27
    24
    33
  • (ii)
    Score
    83 - 91
    91 - 99
    99 - 107
    107 - 115
    115 - 123
    123 - 131
    No. of students
    18
    33
    11
    27
    24
    46
  • (iii)
    Score
    83 - 91
    91 - 99
    99 - 107
    107 - 115
    115 - 123
    123 - 131
    No. of students
    18
    33
    16
    27
    24
    46
  • (iv)
    Score
    83 - 91
    91 - 99
    99 - 107
    107 - 115
    115 - 123
    123 - 131
    No. of students
    18
    11
    33
    27
    24
    46
  • (v)
    Score
    83 - 91
    91 - 99
    99 - 107
    107 - 115
    115 - 123
    123 - 131
    No. of students
    18
    33
    11
    30
    24
    46
Question 14
14.
    • Scores of 158 students are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Score
    70 - 75
    76 - 81
    82 - 87
    88 - 93
    94 - 99
    No. of students
    46
    18
    44
    20
    34
  • (ii)
    Score
    70 - 75
    76 - 81
    82 - 87
    88 - 93
    94 - 99
    No. of students
    46
    34
    44
    20
    14
  • (iii)
    Score
    70 - 75
    76 - 81
    82 - 87
    88 - 93
    94 - 99
    No. of students
    46
    14
    49
    20
    34
  • (iv)
    Score
    70 - 75
    76 - 81
    82 - 87
    88 - 93
    94 - 99
    No. of students
    46
    44
    14
    20
    34
  • (v)
    Score
    70 - 75
    76 - 81
    82 - 87
    88 - 93
    94 - 99
    No. of students
    46
    14
    44
    20
    34
Question 15
15.
    • Rainfall of 178 days (in mm) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Rainfall (in mm)
    5 - 11
    11 - 17
    17 - 23
    23 - 29
    29 - 35
    No. of days
    17
    35
    36
    50
    43
  • (ii)
    Rainfall (in mm)
    5 - 11
    11 - 17
    17 - 23
    23 - 29
    29 - 35
    No. of days
    17
    32
    33
    50
    43
  • (iii)
    Rainfall (in mm)
    5 - 11
    11 - 17
    17 - 23
    23 - 29
    29 - 35
    No. of days
    17
    43
    36
    50
    32
  • (iv)
    Rainfall (in mm)
    5 - 11
    11 - 17
    17 - 23
    23 - 29
    29 - 35
    No. of days
    17
    32
    36
    50
    43
  • (v)
    Rainfall (in mm)
    5 - 11
    11 - 17
    17 - 23
    23 - 29
    29 - 35
    No. of days
    17
    36
    32
    50
    43
Question 16
16.
    • Rainfall of 58 days (in mm) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Rainfall (in mm)
    7 - 12
    13 - 18
    19 - 24
    25 - 30
    31 - 36
    No. of days
    13
    2
    27
    8
    5
  • (ii)
    Rainfall (in mm)
    7 - 12
    13 - 18
    19 - 24
    25 - 30
    31 - 36
    No. of days
    13
    27
    5
    8
    5
  • (iii)
    Rainfall (in mm)
    7 - 12
    13 - 18
    19 - 24
    25 - 30
    31 - 36
    No. of days
    13
    5
    31
    8
    5
  • (iv)
    Rainfall (in mm)
    7 - 12
    13 - 18
    19 - 24
    25 - 30
    31 - 36
    No. of days
    13
    5
    27
    8
    5
Question 17
17.
    • Temperatures of 133 days (in °C) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Temperature (in degree)
    35 - 42
    42 - 49
    49 - 56
    56 - 63
    63 - 70
    No. of days
    40
    38
    21
    24
    10
  • (ii)
    Temperature (in degree)
    35 - 42
    42 - 49
    49 - 56
    56 - 63
    63 - 70
    No. of days
    40
    21
    38
    24
    10
  • (iii)
    Temperature (in degree)
    35 - 42
    42 - 49
    49 - 56
    56 - 63
    63 - 70
    No. of days
    40
    38
    24
    24
    10
  • (iv)
    Temperature (in degree)
    35 - 42
    42 - 49
    49 - 56
    56 - 63
    63 - 70
    No. of days
    40
    34
    21
    24
    10
  • (v)
    Temperature (in degree)
    35 - 42
    42 - 49
    49 - 56
    56 - 63
    63 - 70
    No. of days
    40
    10
    21
    24
    38
Question 18
18.
    • Temperatures of 166 days (in °C) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Temperature (in degree)
    26 - 34
    35 - 43
    44 - 52
    53 - 61
    62 - 70
    No. of days
    42
    19
    43
    34
    32
  • (ii)
    Temperature (in degree)
    26 - 34
    35 - 43
    44 - 52
    53 - 61
    62 - 70
    No. of days
    42
    15
    43
    34
    32
  • (iii)
    Temperature (in degree)
    26 - 34
    35 - 43
    44 - 52
    53 - 61
    62 - 70
    No. of days
    42
    15
    47
    34
    32
  • (iv)
    Temperature (in degree)
    26 - 34
    35 - 43
    44 - 52
    53 - 61
    62 - 70
    No. of days
    42
    32
    43
    34
    15
  • (v)
    Temperature (in degree)
    26 - 34
    35 - 43
    44 - 52
    53 - 61
    62 - 70
    No. of days
    42
    43
    15
    34
    32
Question 19
19.
    • Weights of 183 students (in kg) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Weight (in kg)
    44 - 53
    53 - 62
    62 - 71
    71 - 80
    80 - 89
    89 - 98
    No. of students
    36
    33
    26
    34
    26
    28
  • (ii)
    Weight (in kg)
    44 - 53
    53 - 62
    62 - 71
    71 - 80
    80 - 89
    89 - 98
    No. of students
    36
    26
    30
    34
    26
    28
  • (iii)
    Weight (in kg)
    44 - 53
    53 - 62
    62 - 71
    71 - 80
    80 - 89
    89 - 98
    No. of students
    36
    28
    33
    34
    26
    26
  • (iv)
    Weight (in kg)
    44 - 53
    53 - 62
    62 - 71
    71 - 80
    80 - 89
    89 - 98
    No. of students
    36
    26
    33
    34
    26
    28
  • (v)
    Weight (in kg)
    44 - 53
    53 - 62
    62 - 71
    71 - 80
    80 - 89
    89 - 98
    No. of students
    36
    26
    33
    38
    26
    28
Question 20
20.
    • Weights of 250 students (in kg) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Weight (in kg)
    55 - 61
    62 - 68
    69 - 75
    76 - 82
    83 - 89
    90 - 96
    97 - 103
    104 - 110
    No. of students
    15
    28
    15
    20
    42
    45
    47
    42
  • (ii)
    Weight (in kg)
    55 - 61
    62 - 68
    69 - 75
    76 - 82
    83 - 89
    90 - 96
    97 - 103
    104 - 110
    No. of students
    15
    28
    17
    20
    38
    45
    47
    42
  • (iii)
    Weight (in kg)
    55 - 61
    62 - 68
    69 - 75
    76 - 82
    83 - 89
    90 - 96
    97 - 103
    104 - 110
    No. of students
    15
    28
    20
    15
    38
    45
    47
    42
  • (iv)
    Weight (in kg)
    55 - 61
    62 - 68
    69 - 75
    76 - 82
    83 - 89
    90 - 96
    97 - 103
    104 - 110
    No. of students
    15
    28
    15
    20
    38
    45
    47
    42
  • (v)
    Weight (in kg)
    55 - 61
    62 - 68
    69 - 75
    76 - 82
    83 - 89
    90 - 96
    97 - 103
    104 - 110
    No. of students
    15
    42
    15
    20
    38
    45
    47
    28
Question 21
21.
    • Daily wages of 171 labourers (in ₹) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Daily wage (in Rs)
    202 - 207
    207 - 212
    212 - 217
    217 - 222
    222 - 227
    227 - 232
    232 - 237
    No. of labourers
    30
    13
    49
    11
    13
    32
    26
  • (ii)
    Daily wage (in Rs)
    202 - 207
    207 - 212
    212 - 217
    217 - 222
    222 - 227
    227 - 232
    232 - 237
    No. of labourers
    30
    13
    46
    11
    13
    32
    26
  • (iii)
    Daily wage (in Rs)
    202 - 207
    207 - 212
    212 - 217
    217 - 222
    222 - 227
    227 - 232
    232 - 237
    No. of labourers
    30
    13
    46
    13
    13
    32
    26
  • (iv)
    Daily wage (in Rs)
    202 - 207
    207 - 212
    212 - 217
    217 - 222
    222 - 227
    227 - 232
    232 - 237
    No. of labourers
    30
    26
    46
    11
    13
    32
    13
  • (v)
    Daily wage (in Rs)
    202 - 207
    207 - 212
    212 - 217
    217 - 222
    222 - 227
    227 - 232
    232 - 237
    No. of labourers
    30
    46
    13
    11
    13
    32
    26
Question 22
22.
    • Daily wages of 307 labourers (in ₹) are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Daily wage (in Rs)
    211 - 218
    219 - 226
    227 - 234
    235 - 242
    243 - 250
    251 - 258
    259 - 266
    267 - 274
    No. of labourers
    49
    30
    16
    40
    43
    33
    50
    49
  • (ii)
    Daily wage (in Rs)
    211 - 218
    219 - 226
    227 - 234
    235 - 242
    243 - 250
    251 - 258
    259 - 266
    267 - 274
    No. of labourers
    49
    30
    16
    40
    40
    33
    50
    49
  • (iii)
    Daily wage (in Rs)
    211 - 218
    219 - 226
    227 - 234
    235 - 242
    243 - 250
    251 - 258
    259 - 266
    267 - 274
    No. of labourers
    49
    30
    21
    40
    40
    33
    50
    49
  • (iv)
    Daily wage (in Rs)
    211 - 218
    219 - 226
    227 - 234
    235 - 242
    243 - 250
    251 - 258
    259 - 266
    267 - 274
    No. of labourers
    49
    49
    16
    40
    40
    33
    50
    30
  • (v)
    Daily wage (in Rs)
    211 - 218
    219 - 226
    227 - 234
    235 - 242
    243 - 250
    251 - 258
    259 - 266
    267 - 274
    No. of labourers
    49
    30
    40
    16
    40
    33
    50
    49
    Assignment Key

  •  1) (ii)
  •  2) (i)
  •  3) (i)
  •  4) (i)
  •  5) (iv)
  •  6) (ii)
  •  7) (v)
  •  8) (iv)
  •  9) (iii)
  •  10) (ii)
  •  11) (i)
  •  12) (v)
  •  13) (ii)
  •  14) (v)
  •  15) (iv)
  •  16) (iv)
  •  17) (i)
  •  18) (ii)
  •  19) (iv)
  •  20) (iv)
  •  21) (ii)
  •  22) (ii)