SSC Board Practice

Class VI Class VII Class VIII Class IX Class X
SSC Grade IX - Statistics
Question 1
1.
    • Temperatures of 217 days (in °C) are given below.
    • Identify the class interval table for the given histogram.
  • Temperature (in degree)
    28 - 34
    35 - 41
    42 - 48
    49 - 55
    56 - 62
    63 - 69
    70 - 76
    No. of days
    50
    5
    49
    33
    28
    11
    41
  • Temperature (in degree)
    28 - 34
    35 - 41
    42 - 48
    49 - 55
    56 - 62
    63 - 69
    70 - 76
    No. of days
    50
    5
    49
    35
    28
    11
    41
  • Temperature (in degree)
    28 - 34
    35 - 41
    42 - 48
    49 - 55
    56 - 62
    63 - 69
    70 - 76
    No. of days
    50
    49
    5
    33
    28
    11
    41
  • Temperature (in degree)
    28 - 34
    35 - 41
    42 - 48
    49 - 55
    56 - 62
    63 - 69
    70 - 76
    No. of days
    50
    41
    49
    33
    28
    11
    5
  • Temperature (in degree)
    28 - 34
    35 - 41
    42 - 48
    49 - 55
    56 - 62
    63 - 69
    70 - 76
    No. of days
    50
    5
    46
    33
    28
    11
    41
Question 2
2.
    • Ages of 10 students (in years) are given below. Find the median age.
      • 11
      • 15
      • 13
      • 12
      • 10
      • 12
      • 13
      • 13
      • 14
      • 12
  • 25
    2
    years
  • 27
    2
    years
  • 13
    years
  • 29
    2
    years
Question 3
3.
    • Daily wages of 178 labourers (in ₹) are given below.
    • Identify the class interval table for the given histogram.
  • Daily wage (in Rs)
    227 - 235
    235 - 243
    243 - 251
    251 - 259
    259 - 267
    267 - 275
    No. of labourers
    37
    27
    50
    8
    34
    25
  • Daily wage (in Rs)
    227 - 235
    235 - 243
    243 - 251
    251 - 259
    259 - 267
    267 - 275
    No. of labourers
    37
    27
    50
    5
    34
    25
  • Daily wage (in Rs)
    227 - 235
    235 - 243
    243 - 251
    251 - 259
    259 - 267
    267 - 275
    No. of labourers
    37
    27
    45
    5
    34
    25
  • Daily wage (in Rs)
    227 - 235
    235 - 243
    243 - 251
    251 - 259
    259 - 267
    267 - 275
    No. of labourers
    37
    25
    50
    5
    34
    27
  • Daily wage (in Rs)
    227 - 235
    235 - 243
    243 - 251
    251 - 259
    259 - 267
    267 - 275
    No. of labourers
    37
    50
    27
    5
    34
    25
Question 4
4.
Find the median of all the factors of 10.
  • 7
    2
  • 13
    4
  • 5
    2
  • 4
  • 9
    2
Question 5
5.
    • Temperatures of 16 days are given below. Find the mode.
    • Temperature (in degree C)
      25
      26
      27
      28
      29
      30
      32
      33
      No. of days
      2
      1
      5
      1
      2
      2
      2
      1
  • 26
    °C
  • 25
    °C
  • 28
    °C
  • 27
    °C
  • 29
    °C
Question 6
6.
    • Find the cumulative frequency of class
    • 69
      -
      79
    • .
    • Class-Interval
      25 - 35
      36 - 46
      47 - 57
      58 - 68
      69 - 79
      80 - 90
      91 - 101
      Frequency
      6
      23
      9
      7
      19
      9
      7
  • 65
  • 64
  • 62
  • 63
  • 67
Question 7
7.
    • Rainfall of 25 days are given below. Find the mean.
    • Rainfall (in mm)
      5
      7
      9
      10
      11
      12
      15
      No. of days
      2
      2
      2
      3
      5
      5
      6
  • 277
    25
    mm
  • 302
    25
    mm
  • 278
    25
    mm
  • 279
    25
    mm
  • 327
    25
    mm
Question 8
8.
    • The observations of an ungrouped data are
    • x

      1
    • ,
    • x

      2
    • ,
    • 2x

      1
    • and
    • x

      1
    • <
    • x

      2
    • <
    • 2x

      1
    • .
    • If the mean and median of the data are equal to
    • 24
    • ,
    • find the observations of the data
      • 16
      • ,
      • 24
      • ,
      • 32
      • 32
      • ,
      • 24
      • ,
      • 64
      • 17
      • ,
      • 24
      • ,
      • 34
      • 20
      • ,
      • 24
      • ,
      • 36
Question 9
9.
    • The class marks of a frequency distribution are
    • 33 , 44 , 55 , 66
    • .
    • Find the class size and class intervals
    • in inclusive form
  • 11
    ;
    28
    -
    38
    ,
    39
    -
    49
    ,
    50
    -
    60
    ,
    61
    -
    71
  • 11
    ;
    29
    -
    39
    ,
    40
    -
    50
    ,
    51
    -
    61
    ,
    62
    -
    72
  • 10
    ;
    28
    -
    38
    ,
    38
    -
    48
    ,
    48
    -
    58
    ,
    58
    -
    68
  • 11
    ;
    27
    -
    37
    ,
    38
    -
    48
    ,
    49
    -
    59
    ,
    60
    -
    70
  • 11
    ;
    27
    -
    38
    ,
    38
    -
    49
    ,
    49
    -
    60
    ,
    60
    -
    71
Question 10
10.
Find the mean of all prime numbers between 30 and 100.
  • 929
    15
  • 1055
    17
  • 807
    13
  • 311
    5
  • 931
    15