ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade IX - Mean and Median of Ungrouped Data
Question 1
1.
    • Weights of 14 students (in kg) are given below. Find the median weight.
      • 46
      • 48
      • 46
      • 52
      • 45
      • 43
      • 49
      • 60
      • 45
      • 47
      • 56
      • 58
      • 52
      • 59
  • 49
    kg
  • 101
    2
    kg
  • 97
    2
    kg
  • 99
    2
    kg
Question 2
2.
    • Given the mean of
    • 12
    • samples as
    • 5
      5
      12
    • ,
    • what is the new mean if two samples
    • 8
    • and
    • 9
    • are removed ?
  • 32
    7
  • 22
    5
  • 16
    3
  • 26
    5
  • 24
    5
Question 3
3.
    • If the mean of
    • 8
    • samples is
    • 23
      3
      4
    • ,
    • what is the new mean if
    • 5
    • is added to each number.
  • 117
    4
  • 113
    4
  • 115
    4
  • 59
    2
  • 57
    2
Question 4
4.
Find the mean of first 9 multiples of 2.
  • 7
  • 9
  • 10
  • 11
  • 13
Question 5
5.
Find the mean of the first 20 even numbers.
  • 22
  • 21
  • 20
  • 19
  • 24
Question 6
6.
    • If the mean of
    • 7
    • samples is
    • 22
      2
      7
    • ,
    • what is the new mean if
    • 7
    • is subtracted from each number.
  • 77
    5
  • 107
    7
  • 109
    7
  • 15
  • 137
    9
Question 7
7.
    • Weights of 20 students are given below. Find the mean.
    • Weight (in kg)
      40
      43
      48
      49
      51
      52
      56
      58
      59
      No. of students
      2
      2
      3
      2
      1
      2
      2
      2
      4
  • 1029
    20
    kg
  • 1027
    20
    kg
  • 1047
    20
    kg
  • 1067
    20
    kg
  • 257
    5
    kg
Question 8
8.
Find the mean of all prime numbers between 20 and 90.
  • 111
    2
  • 553
    10
  • 443
    8
  • 445
    8
  • 441
    8
Question 9
9.
Find the median of all the factors of 40.
  • 25
    4
  • 7
  • 11
    2
  • 15
    2
  • 13
    2
Question 10
10.
    • Ages of 11 students (in years) are given below. Find the median age.
      • 10
      • 13
      • 15
      • 12
      • 15
      • 14
      • 12
      • 11
      • 14
      • 14
      • 14
  • 14
    years
  • 12
    years
  • 15
    years
  • 16
    years
  • 13
    years