SSC Board Practice

Class VI Class VII Class VIII Class IX Class X
SSC Grade IX - Statistics
Question 1
1.
    • Given the sample data, prepare the class interval table in
    • inclusive
    • form with
    • 3
    • as min value and a class size of
    • 6
    • .
      • 3
      • 35
      • 41
      • 14
      • 28
      • 47
      • 45
      • 7
      • 18
      • 11
      • 42
      • 41
      • 12
      • 18
      • 35
      • 21
      • 35
      • 3
      • 50
  • Class-Interval
    3 - 8
    9 - 14
    15 - 20
    21 - 26
    27 - 32
    33 - 38
    39 - 44
    45 - 50
    Frequency
    3
    3
    2
    1
    1
    3
    3
    3
  • Class-Interval
    3 - 8
    9 - 14
    15 - 20
    21 - 26
    27 - 32
    33 - 38
    39 - 44
    45 - 50
    Frequency
    3
    3
    1
    2
    1
    3
    3
    3
  • Class-Interval
    3 - 8
    9 - 14
    15 - 20
    21 - 26
    27 - 32
    33 - 38
    39 - 44
    45 - 50
    Frequency
    3
    3
    7
    1
    1
    3
    3
    3
  • Class-Interval
    3 - 9
    9 - 15
    15 - 21
    21 - 27
    27 - 33
    33 - 39
    39 - 45
    45 - 51
    Frequency
    3
    3
    2
    1
    1
    3
    3
    3
Question 2
2.
    • The class mark of the class with frequency x is
    • Class-Interval
      Frequency
      14 - 24
      9
      25 - 35
      x
      36 - 46
      5
      47 - 57
      22
      58 - 68
      1
  • 28
  • 31
  • 32
  • 30
  • 29
Question 3
3.
    • Heights of 15 plants (in cm) are given below. Find the median height.
      • 85
      • 95
      • 56
      • 68
      • 77
      • 69
      • 55
      • 83
      • 70
      • 68
      • 78
      • 57
      • 69
      • 59
      • 68
  • 69
    cm
  • 70
    cm
  • 68
    cm
  • 71
    cm
  • 67
    cm
Question 4
4.
    • Identify the frequency distribution table for the given ages of 13 students in years
      • 21
      • 10
      • 12
      • 19
      • 16
      • 25
      • 18
      • 19
      • 20
      • 24
      • 22
      • 21
      • 12
  • Age (in years)
    10
    12
    16
    18
    19
    20
    21
    22
    24
    25
    No. of Students
    1
    2
    1
    2
    1
    1
    2
    1
    1
    1
  • Age (in years)
    13
    14
    15
    19
    20
    21
    24
    25
    No. of Students
    2
    3
    1
    1
    1
    2
    1
    2
  • Age (in years)
    10
    11
    12
    13
    14
    17
    18
    20
    21
    23
    24
    No. of Students
    1
    1
    1
    1
    1
    1
    2
    1
    1
    1
    2
  • Age (in years)
    10
    12
    16
    18
    19
    20
    21
    22
    24
    25
    No. of Students
    1
    2
    1
    1
    1
    1
    2
    1
    2
    1
  • Age (in years)
    10
    12
    16
    18
    19
    20
    21
    22
    24
    25
    No. of Students
    1
    2
    1
    1
    2
    1
    2
    1
    1
    1
Question 5
5.
    • Weights of 11 students are given below. Find the mode.
    • Weight (in kg)
      40
      42
      46
      47
      53
      56
      57
      59
      No. of students
      3
      1
      1
      1
      1
      1
      2
      1
  • 41
    kg
  • 38
    kg
  • 39
    kg
  • 42
    kg
  • 40
    kg
Question 6
6.
    • Temperatures of 25 days are given below. Find the mean.
    • Temperature (in degree C)
      25
      28
      30
      31
      32
      33
      34
      35
      No. of days
      2
      3
      3
      3
      3
      1
      6
      4
  • 159
    5
    °C
  • 168
    5
    °C
  • 163
    5
    °C
  • 32
    °C
  • 158
    5
    °C
Question 7
7.
    • The class size used in the below table is
    • Class-Interval
      17 - 22
      22 - 27
      27 - 32
      32 - 37
      Frequency
      11
      6
      3
      11
  • 6
  • 5
  • 4
  • 7
  • 2
Question 8
8.
    • The class boundaries of the class with frequency x is
    • Class-Interval
      Frequency
      27 - 32
      25
      32 - 37
      30
      37 - 42
      26
      42 - 47
      21
      47 - 52
      x
  • 47
    -
    52.5
  • 47.5
    -
    51.5
  • 47
    -
    52
  • 46.5
    -
    52.5
  • 46.5
    -
    52
Question 9
9.
    • Heights of 224 students (in cm) are given below.
    • Identify the class interval table for the given histogram.
  • Height (in cm)
    122 - 131
    132 - 141
    142 - 151
    152 - 161
    162 - 171
    172 - 181
    182 - 191
    No. of students
    46
    40
    46
    18
    42
    24
    10
  • Height (in cm)
    122 - 131
    132 - 141
    142 - 151
    152 - 161
    162 - 171
    172 - 181
    182 - 191
    No. of students
    46
    10
    46
    16
    42
    24
    40
  • Height (in cm)
    122 - 131
    132 - 141
    142 - 151
    152 - 161
    162 - 171
    172 - 181
    182 - 191
    No. of students
    46
    40
    46
    16
    42
    24
    10
  • Height (in cm)
    122 - 131
    132 - 141
    142 - 151
    152 - 161
    162 - 171
    172 - 181
    182 - 191
    No. of students
    46
    46
    40
    16
    42
    24
    10
  • Height (in cm)
    122 - 131
    132 - 141
    142 - 151
    152 - 161
    162 - 171
    172 - 181
    182 - 191
    No. of students
    46
    40
    41
    16
    42
    24
    10
Question 10
10.
    • In inclusive form representation, the observation
    • 20
    • falls in which class?
  • 5
    -
    15
  • 9
    -
    19
  • 0
    -
    10
  • 10
    -
    20
  • 21
    -
    30