IMO › Class 6 › Chapter Test

Data Handling — Chapter Test

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Q1
Two full tally groups and 3 more lines stand for ___ ?
5 + 5 + 3 = 13.
Q2
Which is the odd one out (three show data)?
A cuboid is a solid shape; the others show data.
Q3
On a pictograph 1 symbol = 10. How many do 5 symbols show?
5 × 10 = 50.
Q4
The mean is also called the ___ ?
The mean is the average.
Q5
What is the mean of 4, 8, 6?
(4 + 8 + 6) ÷ 3 = 6.
Q6
What is the mean of 10, 20, 30?
(10 + 20 + 30) ÷ 3 = 20.
Q7
What is the mean of 2, 4, 6, 8?
(2 + 4 + 6 + 8) ÷ 4 = 5.
Q8
On a pictograph 1 symbol = 5. How many do 7 symbols show?
7 × 5 = 35.
Q9
Bar A is 25 and bar B is 18. What is the difference?
25 − 18 = 7.
Q10
What is the mean of 12, 18, 15, 15?
(12 + 18 + 15 + 15) ÷ 4 = 60 ÷ 4 = 15.
Q11
A student scores 80, 90 and 100 in three tests. What is the mean score?
(80 + 90 + 100) ÷ 3 = 90.
Q12
A double bar graph is most useful for comparing ___ ?
It compares two groups side by side.
Q13
What is the mean of 6, 9, 12, 9?
(6 + 9 + 12 + 9) ÷ 4 = 36 ÷ 4 = 9.
Q14
The mean of 4 numbers is 10. What is their total?
Total = mean × count = 10 × 4 = 40.
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