SSC Board Practice

Class VI Class VII Class VIII Class IX Class X
SSC Grade IX - Statistics
Question 1
1.
    • Find the sum of frequencies for the given table
    • Value
      14
      15
      37
      40
      62
      68
      75
      76
      Frequency
      1
      1
      1
      1
      2
      1
      2
      1
  • 9
  • 8
  • 10
  • 13
  • 11
Question 2
2.
    • The class size used in the below table is
    • Class-Interval
      22 - 30
      30 - 38
      38 - 46
      46 - 54
      54 - 62
      62 - 70
      70 - 78
      78 - 86
      Frequency
      25
      29
      17
      20
      20
      28
      9
      1
  • 6
  • 7
  • 9
  • 8
  • 10
Question 3
3.
    • In exclusive form representation, the observation
    • 22
    • falls in which class?
  • 22
    -
    32
  • 12
    -
    22
  • 17
    -
    22
  • 32
    -
    42
  • 27
    -
    37
Question 4
4.
    • If the lower and upper limit of class interval are 41 and 49 respectively, then the class interval is
  • 40.5
    -
    49
  • 41
    -
    49.5
  • 41.5
    -
    48.5
  • 40.5
    -
    49.5
  • 41
    -
    49
Question 5
5.
    • Following are the ages (in years) of patients getting medical treatment in a hospital. Identify the cumulative frequency of the given grouped data.
    • Age (in years)
      20 - 25
      25 - 30
      30 - 35
      35 - 40
      40 - 45
      45 - 50
      50 - 55
      No. of Patients
      33
      89
      57
      72
      76
      65
      83
  • Age (in years)
    Cumulative Frequency
    20 - 25
    33
    25 - 30
    90
    30 - 35
    179
    35 - 40
    251
    40 - 45
    327
    45 - 50
    392
    50 - 55
    475
  • Age (in years)
    Cumulative Frequency
    20 - 25
    33
    25 - 30
    122
    30 - 35
    179
    35 - 40
    249
    40 - 45
    325
    45 - 50
    390
    50 - 55
    473
  • Age (in years)
    Cumulative Frequency
    20 - 25
    33
    25 - 30
    116
    30 - 35
    173
    35 - 40
    245
    40 - 45
    321
    45 - 50
    386
    50 - 55
    475
  • Age (in years)
    Cumulative Frequency
    20 - 25
    33
    25 - 30
    122
    30 - 35
    179
    35 - 40
    251
    40 - 45
    327
    45 - 50
    392
    50 - 55
    475
  • Age (in years)
    Cumulative Frequency
    20 - 25
    33
    25 - 30
    122
    30 - 35
    184
    35 - 40
    256
    40 - 45
    332
    45 - 50
    397
    50 - 55
    480
Question 6
6.
Identify the class interval table for the given histogram.
  • Class-Interval
    31 - 34
    34 - 37
    37 - 40
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    Frequency
    41
    121
    79
    46
    73
    95
    84
  • Class-Interval
    31 - 34
    34 - 37
    37 - 40
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    Frequency
    41
    121
    81
    43
    73
    95
    84
  • Class-Interval
    31 - 34
    34 - 37
    37 - 40
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    Frequency
    41
    84
    79
    43
    73
    95
    121
  • Class-Interval
    31 - 34
    34 - 37
    37 - 40
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    Frequency
    41
    121
    79
    43
    73
    95
    84
  • Class-Interval
    31 - 34
    34 - 37
    37 - 40
    40 - 43
    43 - 46
    46 - 49
    49 - 52
    Frequency
    41
    79
    121
    43
    73
    95
    84
Question 7
7.
    • Given class interval table, find the sum of frequencies.
    • Class-Interval
      46 - 54
      55 - 63
      64 - 72
      73 - 81
      82 - 90
      91 - 99
      100 - 108
      Frequency
      8
      8
      5
      16
      8
      13
      8
  • 65
  • 68
  • 66
  • 67
  • 63
Question 8
8.
    • If some random sample data is arranged in a frequency distribution table in
    • exclusive form
    • with
    • 1
    • -
    • 11
    • as the first class,
    • then the observation
    • 23
    • falls in which class?
  • 21.5
    -
    30.5
  • 22
    -
    32
  • 21
    -
    31
  • 20
    -
    30
  • 20.5
    -
    31.5
Question 9
9.
    • Heights of 201 plants (in cm) are given below.
    • Identify the class interval table for the given histogram.
  • Height (in cm)
    62 - 67
    67 - 72
    72 - 77
    77 - 82
    82 - 87
    87 - 92
    No. of plants
    41
    50
    9
    41
    40
    20
  • Height (in cm)
    62 - 67
    67 - 72
    72 - 77
    77 - 82
    82 - 87
    87 - 92
    No. of plants
    41
    20
    50
    41
    40
    9
  • Height (in cm)
    62 - 67
    67 - 72
    72 - 77
    77 - 82
    82 - 87
    87 - 92
    No. of plants
    41
    9
    50
    43
    40
    20
  • Height (in cm)
    62 - 67
    67 - 72
    72 - 77
    77 - 82
    82 - 87
    87 - 92
    No. of plants
    41
    9
    50
    41
    40
    20
  • Height (in cm)
    62 - 67
    67 - 72
    72 - 77
    77 - 82
    82 - 87
    87 - 92
    No. of plants
    41
    9
    46
    41
    40
    20
Question 10
10.
    • Heights of 10 plants (in cm) are given below. Find the median height.
      • 54
      • 53
      • 51
      • 85
      • 77
      • 79
      • 58
      • 85
      • 99
      • 79
  • 80
    cm
  • 78
    cm
  • 79
    cm
  • 76
    cm
  • 77
    cm