ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade X - Measures of Central Tendency
Question 1
1.
    • The marks obtained by 15 students in a test are given below. Find their mean marks.
      • 26
      • 15
      • 7
      • 7
      • 39
      • 15
      • 1
      • 4
      • 22
      • 36
      • 26
      • 6
      • 46
      • 11
      • 6
  • 89
    5
  • 91
    5
  • 87
    5
  • 123
    7
  • 55
    3
Question 2
2.
    • Temperatures of 15 days are given below. Find the mean.
    • Temperature (in degree C)
      25
      26
      27
      28
      29
      33
      35
      No. of days
      2
      2
      2
      1
      2
      3
      3
  • 461
    15
    °C
  • 149
    5
    °C
  • 476
    15
    °C
  • 448
    15
    °C
  • 446
    15
    °C
Question 3
3.
    • The daily wages of
    • 138
    • workers in a factory are given below.
    • Find the
    • mean wage.
    • Wage (in rupees)
      30 - 37
      38 - 45
      46 - 53
      54 - 61
      62 - 69
      70 - 77
      78 - 85
      No. of workers
      10
      29
      15
      20
      21
      27
      16
  • ₹
    59.66
  • ₹
    60.66
  • ₹
    58.67
  • ₹
    58.66
Question 4
4.
The histogram given below shows the number of illiterate persons of different age groups in a town. Using the data in the diagram, calculate the mean age
  • 45.14 years
  • 49.14 years
  • 48.14 years
  • 46.14 years
  • 47.14 years
Question 5
5.
    • If the mean of
    • 6
    • samples is
    • 37
      1
      3
    • ,
    • what is the new mean if each number is multiplied by
    • 10
    • .
  • 374
  • 1866
    5
  • 1118
    3
  • 1120
    3
Question 6
6.
Find the mean of all prime numbers between 40 and 60.
  • 49
  • 243
    5
  • 241
    5
  • 339
    7
Question 7
7.
    • Ages of 140 students (in years) are given below. Calculate the mean age from the given histogram.
  • 28.51 years
  • 38.51 years
  • 36.51 years
  • 33.51 years
  • 30.51 years
Question 8
8.
    • Given the mean of
    • 10
    • samples as
    • 6
    • ,
    • what is the new mean if two samples
    • 1
    • and
    • 5
    • are added ?
  • 6
  • 13
    2
  • 21
    4
  • 11
    2
  • 9
    2
Question 9
9.
    • Ages of 15 students (in years) are given below. Find the mean age.
      • 11
      • 10
      • 11
      • 15
      • 14
      • 10
      • 11
      • 10
      • 12
      • 11
      • 11
      • 11
      • 11
      • 10
      • 13
  • 58
    5
    years
  • 62
    5
    years
  • 67
    5
    years
  • 59
    5
    years
  • 57
    5
    years
Question 10
10.
    • Weights of 15 students are given below. Find the mean.
    • Weight (in kg)
      44
      50
      53
      54
      55
      56
      57
      60
      No. of students
      3
      2
      1
      1
      2
      2
      3
      1
  • 269
    5
    kg
  • 264
    5
    kg
  • 53
    kg
  • 266
    5
    kg
  • 274
    5
    kg