CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
CBSE Grade X - Statistics
Question 1
1.
    • Heights of 66 students (in cm) are given below.
    • Identify the frequency distribution table for the given '
    • less than
    • ' ogive.
  • Height (in cm)
    124 - 132
    133 - 141
    142 - 150
    151 - 159
    160 - 168
    No. of students
    14
    14
    13
    15
    14
  • Height (in cm)
    124 - 132
    133 - 141
    142 - 150
    151 - 159
    160 - 168
    No. of students
    14
    13
    10
    15
    14
  • Height (in cm)
    124 - 132
    133 - 141
    142 - 150
    151 - 159
    160 - 168
    No. of students
    14
    14
    13
    15
    10
  • Height (in cm)
    124 - 132
    133 - 141
    142 - 150
    151 - 159
    160 - 168
    No. of students
    14
    10
    13
    15
    14
  • Height (in cm)
    124 - 132
    133 - 141
    142 - 150
    151 - 159
    160 - 168
    No. of students
    14
    10
    18
    15
    14
Question 2
2.
    • Ages of 128 students (in years) are given below.
    • Identify the frequency distribution table for the given '
    • less than
    • ' ogive.
  • Age (in years)
    17 - 22
    23 - 28
    29 - 34
    35 - 40
    41 - 46
    47 - 52
    53 - 58
    59 - 64
    No. of students
    20
    15
    20
    15
    7
    15
    17
    19
  • Age (in years)
    17 - 22
    23 - 28
    29 - 34
    35 - 40
    41 - 46
    47 - 52
    53 - 58
    59 - 64
    No. of students
    20
    19
    18
    15
    7
    15
    17
    15
  • Age (in years)
    17 - 22
    23 - 28
    29 - 34
    35 - 40
    41 - 46
    47 - 52
    53 - 58
    59 - 64
    No. of students
    20
    19
    20
    15
    7
    15
    17
    15
  • Age (in years)
    17 - 22
    23 - 28
    29 - 34
    35 - 40
    41 - 46
    47 - 52
    53 - 58
    59 - 64
    No. of students
    20
    19
    20
    15
    9
    15
    17
    15
  • Age (in years)
    17 - 22
    23 - 28
    29 - 34
    35 - 40
    41 - 46
    47 - 52
    53 - 58
    59 - 64
    No. of students
    20
    19
    15
    20
    7
    15
    17
    15
Question 3
3.
    • Temperatures of 73 days (in °C) are given below.
    • Identify the frequency distribution table for the given '
    • median
    • ' ogive.
  • Temperature (in degree)
    29 - 35
    36 - 42
    43 - 49
    50 - 56
    57 - 63
    64 - 70
    No. of days
    19
    8
    5
    18
    5
    18
  • Temperature (in degree)
    29 - 35
    36 - 42
    43 - 49
    50 - 56
    57 - 63
    64 - 70
    No. of days
    19
    5
    8
    18
    5
    18
  • Temperature (in degree)
    29 - 35
    36 - 42
    43 - 49
    50 - 56
    57 - 63
    64 - 70
    No. of days
    19
    5
    5
    18
    5
    18
  • Temperature (in degree)
    29 - 35
    36 - 42
    43 - 49
    50 - 56
    57 - 63
    64 - 70
    No. of days
    19
    5
    8
    16
    5
    18
  • Temperature (in degree)
    29 - 35
    36 - 42
    43 - 49
    50 - 56
    57 - 63
    64 - 70
    No. of days
    19
    18
    8
    18
    5
    5
Question 4
4.
The mean and median of a uni-modal grouped data are 58 and 42 respectively. Find the mode of the data.
  • 91
  • 89
  • 90
  • 88
  • 92
Question 5
5.
    • Rainfall of 10 days are given below. Find the mean.
    • Rainfall (in mm)
      5
      7
      13
      14
      No. of days
      3
      2
      1
      4
  • 51
    5
    mm
  • 54
    5
    mm
  • 10
    mm
  • 49
    5
    mm
  • 59
    5
    mm
Question 6
6.
    • Daily wages of 93 labourers (in ₹) are given below.
    • Identify the frequency distribution table for the given '
    • median
    • ' ogive.
  • Daily wage (in Rs)
    269 - 274
    275 - 280
    281 - 286
    287 - 292
    293 - 298
    299 - 304
    No. of labourers
    10
    20
    21
    18
    11
    15
  • Daily wage (in Rs)
    269 - 274
    275 - 280
    281 - 286
    287 - 292
    293 - 298
    299 - 304
    No. of labourers
    10
    20
    19
    18
    11
    15
  • Daily wage (in Rs)
    269 - 274
    275 - 280
    281 - 286
    287 - 292
    293 - 298
    299 - 304
    No. of labourers
    10
    20
    19
    15
    11
    15
  • Daily wage (in Rs)
    269 - 274
    275 - 280
    281 - 286
    287 - 292
    293 - 298
    299 - 304
    No. of labourers
    10
    19
    20
    18
    11
    15
  • Daily wage (in Rs)
    269 - 274
    275 - 280
    281 - 286
    287 - 292
    293 - 298
    299 - 304
    No. of labourers
    10
    15
    19
    18
    11
    20
Question 7
7.
    • If the lower and upper limit of class interval are 38 and 44 respectively, then the class interval is
  • 38
    -
    44.5
  • 38
    -
    44
  • 37.5
    -
    44.5
  • 37.5
    -
    44
  • 38.5
    -
    43.5
Question 8
8.
    • Temperatures of 11 days are given below. Find the mode.
    • Temperature (in degree C)
      25
      28
      29
      32
      33
      34
      35
      No. of days
      3
      1
      2
      1
      1
      1
      2
  • 25
    °C
  • 26
    °C
  • 24
    °C
  • 27
    °C
  • 23
    °C
Question 9
9.
    • Rainfall of 91 days (in mm) are given below.
    • Identify the frequency distribution table for the given '
    • less than
    • ' ogive.
  • Rainfall (in mm)
    14 - 21
    22 - 29
    30 - 37
    38 - 45
    46 - 53
    54 - 61
    No. of days
    14
    8
    10
    16
    19
    20
  • Rainfall (in mm)
    14 - 21
    22 - 29
    30 - 37
    38 - 45
    46 - 53
    54 - 61
    No. of days
    14
    10
    8
    20
    19
    20
  • Rainfall (in mm)
    14 - 21
    22 - 29
    30 - 37
    38 - 45
    46 - 53
    54 - 61
    No. of days
    14
    8
    14
    20
    19
    20
  • Rainfall (in mm)
    14 - 21
    22 - 29
    30 - 37
    38 - 45
    46 - 53
    54 - 61
    No. of days
    14
    8
    10
    20
    19
    20
  • Rainfall (in mm)
    14 - 21
    22 - 29
    30 - 37
    38 - 45
    46 - 53
    54 - 61
    No. of days
    14
    20
    10
    20
    19
    8
Question 10
10.
    • Heights of 112 students (in cm) are given below.
    • Identify the frequency distribution table for the given '
    • more than
    • ' ogive.
  • Height (in cm)
    130 - 137
    138 - 145
    146 - 153
    154 - 161
    162 - 169
    170 - 177
    178 - 185
    186 - 193
    No. of students
    13
    16
    7
    18
    7
    19
    11
    18
  • Height (in cm)
    130 - 137
    138 - 145
    146 - 153
    154 - 161
    162 - 169
    170 - 177
    178 - 185
    186 - 193
    No. of students
    13
    16
    9
    18
    10
    19
    11
    18
  • Height (in cm)
    130 - 137
    138 - 145
    146 - 153
    154 - 161
    162 - 169
    170 - 177
    178 - 185
    186 - 193
    No. of students
    13
    16
    7
    18
    10
    19
    11
    18
  • Height (in cm)
    130 - 137
    138 - 145
    146 - 153
    154 - 161
    162 - 169
    170 - 177
    178 - 185
    186 - 193
    No. of students
    13
    16
    18
    7
    10
    19
    11
    18
  • Height (in cm)
    130 - 137
    138 - 145
    146 - 153
    154 - 161
    162 - 169
    170 - 177
    178 - 185
    186 - 193
    No. of students
    13
    18
    7
    18
    10
    19
    11
    16