ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VIII - Statistics
Question 1
1.
The following bar graph shows the export earnings of a country (in thousand crore) during five years. Find the year that has 190 thousand crore export earnings.
  • 2008-09
  • 2009-10
  • 2006-07
  • 2010-11
  • 2007-08
Question 2
2.
    • Given class interval table, find the sum of frequencies.
    • Class-Interval
      44 - 50
      50 - 56
      56 - 62
      62 - 68
      68 - 74
      Frequency
      17
      19
      12
      23
      13
  • 83
  • 87
  • 82
  • 84
  • 85
Question 3
3.
Given below is the column-graph showing heights of some mountain peaks. Find the mountain that has minimum height.
  • Nanga Parbat
  • Himadri
  • Alps
  • Kanchenjunga
  • Nanda Devi
Question 4
4.
    • Given class interval table, find the sum of frequencies.
    • Class-Interval
      45 - 53
      54 - 62
      63 - 71
      72 - 80
      81 - 89
      90 - 98
      Frequency
      21
      5
      14
      15
      17
      12
  • 83
  • 81
  • 85
  • 87
  • 84
Question 5
5.
    • Weights of 31 students are given below. Find the mode.
    • Weight (in kg)
      42
      44
      46
      47
      50
      51
      58
      59
      60
      No. of students
      3
      1
      3
      6
      4
      3
      2
      5
      4
  • 46
    kg
  • 45
    kg
  • 47
    kg
  • 49
    kg
  • 48
    kg
Question 6
6.
    • Temperatures of 21 days are given below. Find the mode.
    • Temperature (in degree C)
      25
      26
      27
      28
      29
      30
      31
      32
      33
      34
      35
      No. of days
      4
      1
      1
      2
      1
      3
      2
      2
      1
      2
      2
  • 23
    °C
  • 26
    °C
  • 25
    °C
  • 24
    °C
  • 27
    °C
Question 7
7.
Which of the following are continuous variables?
a)
Population of cities
b)
Rainfall at a place over a month
c)
Number of members in a family
d)
Marks obtained by student in a particular subject
e)
Temperature at a place over a month
  • {b,e}
  • {c,e,b}
  • {a,b}
  • {d,a,b}
  • {c,e}
Question 8
8.
Which of the following are discrete variables?
a)
Temperature at a place over a month
b)
Wages of workers in a factory
c)
Rainfall at a place over a month
d)
Number of workers in a factory
e)
Population of cities
  • {b,e}
  • {c,a,d}
  • {d,e}
  • {b,e,d}
  • {a,d}
Question 9
9.
    • If the mean of
      • 4
      • 6
      • 5
      • 3
    • x
      • 7
      • 10
      • 8
    • is
    • 5
      5
      8
    • ,
    • find the value of x.
  • 3
  • 1
  • -1
  • 4
  • 2
Question 10
10.
In a bar diagram the value represented by a rectangle is proportional to its
  • breadth
  • perimeter
  • area
  • length