EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Statistics
Grade : CBSE Grade IX
License : Non Commercial Use
Question 1
1.
    • Scores of 129 students are given below.
    • Identify the class interval table for the given histogram and frequency polygon on the same graph.
  • (i)
    Score
    77 - 85
    86 - 94
    95 - 103
    104 - 112
    113 - 121
    122 - 130
    131 - 139
    No. of students
    12
    17
    4
    48
    20
    7
    19
  • (ii)
    Score
    77 - 85
    86 - 94
    95 - 103
    104 - 112
    113 - 121
    122 - 130
    131 - 139
    No. of students
    12
    19
    6
    48
    20
    7
    17
  • (iii)
    Score
    77 - 85
    86 - 94
    95 - 103
    104 - 112
    113 - 121
    122 - 130
    131 - 139
    No. of students
    12
    17
    6
    48
    20
    7
    19
  • (iv)
    Score
    77 - 85
    86 - 94
    95 - 103
    104 - 112
    113 - 121
    122 - 130
    131 - 139
    No. of students
    12
    6
    17
    48
    20
    7
    19
  • (v)
    Score
    77 - 85
    86 - 94
    95 - 103
    104 - 112
    113 - 121
    122 - 130
    131 - 139
    No. of students
    12
    17
    6
    51
    20
    7
    19
Question 2
2.
The air distance of some cities from Delhi (in km) are given below. Find the city that has 630 km distance.
  • (i)
    Indore
  • (ii)
    Bangalore
  • (iii)
    Trivandrum
  • (iv)
    Pune
  • (v)
    Cuttack
Question 3
3.
    • The mean of the below random sample is
    • 31
      3
      5
    • .
    • Find the missing quantity.
      • 27
      • 15
      • 27
      • 50
      • 16
      • 46
      • 12
      • 41
      • 37
      • x
  • (i)
    45
  • (ii)
    46
  • (iii)
    48
  • (iv)
    43
  • (v)
    44
Question 4
4.
Read the column-graph given below. Find the year that has minimum food grains production.
  • (i)
    2009
  • (ii)
    2008
  • (iii)
    2011
  • (iv)
    2010
  • (v)
    2007
Question 5
5.
    • Scores of 152 students are given below.
    • Identify the class interval table for the given histogram.
  • (i)
    Score
    86 - 95
    96 - 105
    106 - 115
    116 - 125
    126 - 135
    No. of students
    31
    8
    42
    38
    33
  • (ii)
    Score
    86 - 95
    96 - 105
    106 - 115
    116 - 125
    126 - 135
    No. of students
    31
    42
    12
    38
    33
  • (iii)
    Score
    86 - 95
    96 - 105
    106 - 115
    116 - 125
    126 - 135
    No. of students
    31
    33
    8
    38
    42
  • (iv)
    Score
    86 - 95
    96 - 105
    106 - 115
    116 - 125
    126 - 135
    No. of students
    31
    39
    8
    38
    33
  • (v)
    Score
    86 - 95
    96 - 105
    106 - 115
    116 - 125
    126 - 135
    No. of students
    31
    42
    8
    38
    33
Question 6
6.
    • Scores of 20 students are given below. Find the mean.
    • Score
      74
      77
      79
      81
      84
      86
      88
      89
      No. of students
      3
      1
      3
      1
      4
      5
      2
      1
  • (i)
    412
    5
  • (ii)
    422
    5
  • (iii)
    414
    5
  • (iv)
    417
    5
  • (v)
    413
    5
Question 7
7.
    • Rainfall of 189 days (in mm) are given below.
    • Identify the class interval table for the given histogram and frequency polygon on the same graph.
  • (i)
    Rainfall (in mm)
    12 - 17
    18 - 23
    24 - 29
    30 - 35
    36 - 41
    42 - 47
    No. of days
    42
    29
    27
    29
    49
    13
  • (ii)
    Rainfall (in mm)
    12 - 17
    18 - 23
    24 - 29
    30 - 35
    36 - 41
    42 - 47
    No. of days
    42
    27
    29
    29
    49
    13
  • (iii)
    Rainfall (in mm)
    12 - 17
    18 - 23
    24 - 29
    30 - 35
    36 - 41
    42 - 47
    No. of days
    42
    13
    27
    29
    49
    29
  • (iv)
    Rainfall (in mm)
    12 - 17
    18 - 23
    24 - 29
    30 - 35
    36 - 41
    42 - 47
    No. of days
    42
    29
    27
    24
    49
    13
  • (v)
    Rainfall (in mm)
    12 - 17
    18 - 23
    24 - 29
    30 - 35
    36 - 41
    42 - 47
    No. of days
    42
    29
    23
    29
    49
    13
Question 8
8.
The marks obtained by Pavan in his annual exam are shown below. Find the subject that has 55 score.
  • (i)
    French
  • (ii)
    Spanish
  • (iii)
    German
  • (iv)
    Urdu
  • (v)
    Telugu
Question 9
9.
Following bar graph gives the average temperature of a place during a week. Find the day that has maximum temperature.
  • (i)
    Mon.
  • (ii)
    Wed.
  • (iii)
    Sat.
  • (iv)
    Sun.
  • (v)
    Fri.
Question 10
10.
    • The sale of shirts of various sizes at a shop on a particular day is given below. Identify the frequency distribution table for the given data.
      • 39
      • 29
      • 25
      • 20
      • 21
      • 20
      • 37
      • 23
      • 34
      • 24
      • 40
      • 30
      • 26
      • 35
      • 25
      • 37
      • 31
      • 38
      • 35
      • 32
  • (i)
    Size
    20
    21
    22
    23
    26
    28
    29
    33
    34
    35
    36
    38
    40
    No. of Shirts
    1
    3
    2
    1
    2
    1
    2
    1
    2
    1
    2
    1
    1
  • (ii)
    Size
    20
    21
    23
    24
    25
    26
    29
    30
    31
    32
    34
    35
    37
    38
    39
    40
    No. of Shirts
    2
    1
    1
    1
    2
    1
    1
    1
    1
    1
    1
    2
    2
    1
    1
    1
  • (iii)
    Size
    20
    21
    22
    23
    24
    26
    27
    28
    31
    33
    34
    36
    37
    40
    No. of Shirts
    1
    2
    1
    2
    2
    2
    1
    1
    1
    2
    1
    2
    1
    1
  • (iv)
    Size
    20
    21
    23
    24
    25
    26
    29
    30
    31
    34
    35
    37
    38
    39
    40
    No. of Shirts
    2
    1
    1
    2
    2
    1
    1
    1
    1
    1
    2
    2
    1
    1
    1
Question 11
11.
There are 1827 creatures in a zoo as shown in the bar graph. Identify the table for the given bar diagram.
  • (i)
    Type of Creatures
    Water animals
    Domestic animals
    Beast animals
    Reptiles
    Land animals
    Birds
    Wild animals
    No. of Creatures
    414
    117
    342
    351
    81
    450
    72
  • (ii)
    Type of Creatures
    Water animals
    Domestic animals
    Beast animals
    Reptiles
    Land animals
    Birds
    Wild animals
    No. of Creatures
    117
    414
    81
    351
    450
    72
    342
  • (iii)
    Type of Creatures
    Water animals
    Domestic animals
    Beast animals
    Reptiles
    Land animals
    Birds
    Wild animals
    No. of Creatures
    117
    351
    414
    81
    72
    450
    342
  • (iv)
    Type of Creatures
    Water animals
    Domestic animals
    Beast animals
    Reptiles
    Land animals
    Birds
    Wild animals
    No. of Creatures
    72
    117
    342
    450
    81
    351
    414
  • (v)
    Type of Creatures
    Water animals
    Domestic animals
    Beast animals
    Reptiles
    Land animals
    Birds
    Wild animals
    No. of Creatures
    450
    117
    342
    414
    72
    351
    81
Question 12
12.
Which of the following tables represent the given histogram with varying base widths
  • (i)
    Age (in years)
    19 - 29
    29 - 39
    39 - 69
    69 - 89
    89 - 99
    99 - 109
    No. of students
    14
    10
    14
    13
    14
    11
  • (ii)
    Age (in years)
    19 - 29
    29 - 39
    39 - 69
    69 - 89
    89 - 99
    99 - 109
    No. of students
    14
    10
    5
    7
    14
    11
  • (iii)
    Age (in years)
    19 - 29
    29 - 39
    39 - 69
    69 - 89
    89 - 99
    99 - 109
    No. of students
    14
    10
    16
    13
    14
    11
  • (iv)
    Age (in years)
    19 - 29
    29 - 39
    39 - 69
    69 - 89
    89 - 99
    99 - 109
    No. of students
    14
    10
    5
    12
    14
    11
  • (v)
    Age (in years)
    19 - 29
    29 - 39
    39 - 69
    69 - 89
    89 - 99
    99 - 109
    No. of students
    14
    10
    14
    15
    14
    11
Question 13
13.
    • Ages of 131 students (in years) are given below.
    • Identify the class interval table for the given histogram and frequency polygon on the same graph.
  • (i)
    Age (in years)
    14 - 22
    22 - 30
    30 - 38
    38 - 46
    46 - 54
    No. of students
    16
    30
    43
    23
    22
  • (ii)
    Age (in years)
    14 - 22
    22 - 30
    30 - 38
    38 - 46
    46 - 54
    No. of students
    16
    22
    43
    23
    27
  • (iii)
    Age (in years)
    14 - 22
    22 - 30
    30 - 38
    38 - 46
    46 - 54
    No. of students
    16
    27
    47
    23
    22
  • (iv)
    Age (in years)
    14 - 22
    22 - 30
    30 - 38
    38 - 46
    46 - 54
    No. of students
    16
    27
    43
    23
    22
  • (v)
    Age (in years)
    14 - 22
    22 - 30
    30 - 38
    38 - 46
    46 - 54
    No. of students
    16
    43
    27
    23
    22
Question 14
14.
    • The marks obtained by 14 students in a test are given below. Find their mean marks.
      • 44
      • 16
      • 47
      • 41
      • 15
      • 42
      • 47
      • 43
      • 39
      • 10
      • 48
      • 2
      • 47
      • 30
  • (i)
    135
    4
  • (ii)
    537
    16
  • (iii)
    67
    2
  • (iv)
    473
    14
  • (v)
    471
    14
Question 15
15.
Find the median of the first 10 odd numbers.
  • (i)
    13
  • (ii)
    7
  • (iii)
    11
  • (iv)
    10
  • (v)
    9
Question 16
16.
Which of the following tables represent the given histogram with varying base widths
  • (i)
    Height (in cm)
    129 - 139
    139 - 169
    169 - 179
    179 - 199
    No. of students
    7
    3
    13
    8
  • (ii)
    Height (in cm)
    129 - 139
    139 - 169
    169 - 179
    179 - 199
    No. of students
    7
    10
    14
    15
  • (iii)
    Height (in cm)
    129 - 139
    139 - 169
    169 - 179
    179 - 199
    No. of students
    7
    3
    11
    8
  • (iv)
    Height (in cm)
    129 - 139
    139 - 169
    169 - 179
    179 - 199
    No. of students
    7
    5
    11
    15
  • (v)
    Height (in cm)
    129 - 139
    139 - 169
    169 - 179
    179 - 199
    No. of students
    7
    10
    11
    15
Question 17
17.
The marks obtained by Kaushik in his annual exam are shown below. Find the subject that has maximum score.
  • (i)
    Urdu
  • (ii)
    Sanskrit
  • (iii)
    English
  • (iv)
    French
  • (v)
    German
Question 18
18.
    • The number of children in 19 families are given below. Identify the frequency distribution table for the given data.
      • 2
      • 0
      • 2
      • 5
      • 1
      • 0
      • 0
      • 2
      • 0
      • 1
      • 1
      • 0
      • 1
      • 3
      • 5
      • 3
      • 2
      • 1
      • 4
  • (i)
    No. of children
    0
    1
    2
    3
    4
    5
    No. of families
    5
    4
    4
    2
    1
    3
  • (ii)
    No. of children
    0
    1
    2
    3
    4
    5
    No. of families
    5
    6
    4
    2
    1
    1
  • (iii)
    No. of children
    0
    1
    2
    3
    4
    5
    No. of families
    5
    5
    4
    2
    1
    2
  • (iv)
    No. of children
    0
    1
    2
    3
    4
    5
    No. of families
    3
    3
    4
    3
    2
    4
  • (v)
    No. of children
    0
    1
    2
    3
    4
    5
    No. of families
    1
    3
    3
    5
    4
    3
Question 19
19.
    • If the mean of
    • 8
    • samples is
    • 25
      1
      8
    • ,
    • what is the new mean if
    • 8
    • is added to each number.
  • (i)
    267
    8
  • (ii)
    263
    8
  • (iii)
    265
    8
  • (iv)
    331
    10
  • (v)
    199
    6
Question 20
20.
    • Daily wages of 157 labourers (in ₹) are given below.
    • Identify the class interval table for the given frequency polygon.
  • (i)
    Daily wage (in Rs)
    281 - 287
    288 - 294
    295 - 301
    302 - 308
    309 - 315
    316 - 322
    323 - 329
    No. of labourers
    5
    15
    45
    48
    17
    11
    16
  • (ii)
    Daily wage (in Rs)
    281 - 287
    288 - 294
    295 - 301
    302 - 308
    309 - 315
    316 - 322
    323 - 329
    No. of labourers
    5
    45
    15
    48
    17
    11
    16
  • (iii)
    Daily wage (in Rs)
    281 - 287
    288 - 294
    295 - 301
    302 - 308
    309 - 315
    316 - 322
    323 - 329
    No. of labourers
    5
    16
    15
    48
    17
    11
    45
  • (iv)
    Daily wage (in Rs)
    281 - 287
    288 - 294
    295 - 301
    302 - 308
    309 - 315
    316 - 322
    323 - 329
    No. of labourers
    5
    45
    15
    43
    17
    11
    16
  • (v)
    Daily wage (in Rs)
    281 - 287
    288 - 294
    295 - 301
    302 - 308
    309 - 315
    316 - 322
    323 - 329
    No. of labourers
    5
    45
    13
    48
    17
    11
    16
Question 21
21.
The following bar graph shows the export earnings of a country (in thousand crore) during five years. Find the year that has 166 thousand crore export earnings.
  • (i)
    2008-09
  • (ii)
    2009-10
  • (iii)
    2006-07
  • (iv)
    2010-11
  • (v)
    2007-08
Question 22
22.
    • Rainfall of 238 days (in mm) are given below.
    • Identify the class interval table for the given frequency polygon.
  • (i)
    Rainfall (in mm)
    9 - 14
    15 - 20
    21 - 26
    27 - 32
    33 - 38
    39 - 44
    45 - 50
    51 - 56
    No. of days
    38
    6
    31
    17
    42
    35
    46
    23
  • (ii)
    Rainfall (in mm)
    9 - 14
    15 - 20
    21 - 26
    27 - 32
    33 - 38
    39 - 44
    45 - 50
    51 - 56
    No. of days
    38
    23
    31
    17
    42
    35
    46
    6
  • (iii)
    Rainfall (in mm)
    9 - 14
    15 - 20
    21 - 26
    27 - 32
    33 - 38
    39 - 44
    45 - 50
    51 - 56
    No. of days
    38
    6
    17
    31
    42
    35
    46
    23
  • (iv)
    Rainfall (in mm)
    9 - 14
    15 - 20
    21 - 26
    27 - 32
    33 - 38
    39 - 44
    45 - 50
    51 - 56
    No. of days
    38
    6
    36
    17
    42
    35
    46
    23
  • (v)
    Rainfall (in mm)
    9 - 14
    15 - 20
    21 - 26
    27 - 32
    33 - 38
    39 - 44
    45 - 50
    51 - 56
    No. of days
    38
    6
    31
    17
    37
    35
    46
    23
Question 23
23.
    • Given class interval
    • 18
    • -
    • 20
    • in exclusive form, its
    • class mark is
  • (i)
    18
  • (ii)
    17
  • (iii)
    20
  • (iv)
    19
  • (v)
    22
Question 24
24.
    • Heights of 156 students (in cm) are given below.
    • Identify the class interval table for the given histogram and frequency polygon on the same graph.
  • (i)
    Height (in cm)
    127 - 135
    135 - 143
    143 - 151
    151 - 159
    159 - 167
    167 - 175
    No. of students
    16
    30
    27
    25
    47
    14
  • (ii)
    Height (in cm)
    127 - 135
    135 - 143
    143 - 151
    151 - 159
    159 - 167
    167 - 175
    No. of students
    16
    30
    27
    22
    47
    14
  • (iii)
    Height (in cm)
    127 - 135
    135 - 143
    143 - 151
    151 - 159
    159 - 167
    167 - 175
    No. of students
    16
    27
    30
    22
    47
    14
  • (iv)
    Height (in cm)
    127 - 135
    135 - 143
    143 - 151
    151 - 159
    159 - 167
    167 - 175
    No. of students
    16
    14
    27
    22
    47
    30
  • (v)
    Height (in cm)
    127 - 135
    135 - 143
    143 - 151
    151 - 159
    159 - 167
    167 - 175
    No. of students
    16
    30
    29
    22
    47
    14
Question 25
25.
    • Ages of 16 students are given below. Find the mode.
    • Age (in years)
      10
      11
      12
      13
      14
      15
      No. of students
      3
      5
      2
      2
      3
      1
  • (i)
    11
    years
  • (ii)
    9
    years
  • (iii)
    10
    years
  • (iv)
    12
    years
  • (v)
    13
    years
    Assignment Key
  •  1) (iii)
  •  2) (iii)
  •  3) (i)
  •  4) (iii)
  •  5) (v)
  •  6) (i)
  •  7) (i)
  •  8) (v)
  •  9) (i)
  •  10) (ii)
  •  11) (iv)
  •  12) (i)
  •  13) (iv)
  •  14) (v)
  •  15) (iv)
  •  16) (v)
  •  17) (v)
  •  18) (iii)
  •  19) (iii)
  •  20) (ii)
  •  21) (iii)
  •  22) (i)
  •  23) (iv)
  •  24) (ii)
  •  25) (i)