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.
    • Heights of 12 students (in cm) are given below. Find the mean height.
      • 159
      • 172
      • 136
      • 146
      • 137
      • 139
      • 148
      • 135
      • 128
      • 140
      • 126
      • 128
  • 424
    3
    cm
  • 859
    6
    cm
  • 283
    2
    cm
  • 847
    6
    cm
  • 853
    6
    cm
Question 2
2.
    • If the mean of
    • 7
    • samples is
    • 24
      4
      7
    • ,
    • what is the new mean if
    • 10
    • is added to each number.
  • 174
    5
  • 244
    7
  • 240
    7
  • 242
    7
  • 310
    9
Question 3
3.
    • Weights of 30 students are given below. Find the mean.
    • Weight (in kg)
      42
      44
      46
      49
      50
      51
      54
      56
      57
      58
      59
      60
      No. of students
      1
      2
      1
      1
      2
      2
      1
      5
      3
      4
      4
      4
  • 167
    3
    kg
  • 55
    kg
  • 170
    3
    kg
  • 164
    3
    kg
  • 166
    3
    kg
Question 4
4.
Find the median of first 5 whole numbers.
  • 4
  • 1
  • 2
  • -1
  • 3
Question 5
5.
    • The scores obtained by 9 students in a test are given below. Find the mean score.
      • 3
      • 12
      • 19
      • 17
      • 16
      • 7
      • 11
      • 18
      • 3
  • 12
  • 3
  • 16
  • 19
  • 11
    7
    9
Question 6
6.
    • The marks obtained by 15 students in a test are given below. Find the mean of their marks when the marks of each student is doubled.
      • 1
      • 17
      • 9
      • 28
      • 8
      • 9
      • 29
      • 29
      • 4
      • 28
      • 48
      • 47
      • 2
      • 21
      • 18
  • 598
    15
  • 674
    17
  • 596
    15
  • 198
    5
  • 518
    13
Question 7
7.
    • Heights of 25 plants are given below. Find the median.
    • Height (in cm)
      51
      58
      59
      77
      81
      93
      No. of plants
      2
      4
      6
      4
      6
      3
  • 79
    cm
  • 75
    cm
  • 77
    cm
  • 76
    cm
  • 78
    cm
Question 8
8.
    • Scores of 15 students are given below. Find the median score.
      • 70
      • 78
      • 83
      • 73
      • 81
      • 80
      • 72
      • 79
      • 82
      • 84
      • 84
      • 80
      • 80
      • 81
      • 88
  • 78
  • 81
  • 82
  • 80
  • 79
Question 9
9.
    • Daily wages of 12 labourers (in ₹) are given below. Find the median wage.
      • 425
      • 331
      • 440
      • 421
      • 439
      • 490
      • 321
      • 415
      • 478
      • 498
      • 389
      • 476
  • ₹
    430.00
  • ₹
    433.00
  • ₹
    434.00
  • ₹
    432.00
  • ₹
    431.00
Question 10
10.
Find the median of the first 15 even numbers.
  • 16
  • 17
  • 14
  • 15
  • 18