ICSE Class 8 Maths Statistics Unit Test Paper

Unit Test Paper

Statistics

1. 40 students in a school were asked to rate their favourite sport by ticking any one of the choices below:

Cricket [a] Football [b] Hockey [c]

Any other [d]

The raw data collected in the survey is as follows:

a d b b c a b b a d

a a a b a b a a a b

b b e c a b c b b a

a a a c d d a a a c

What is the mode of the given data?

Construct a tally chart and a simple frequency distribution table. Then display the given information in a column graph.

2. 40 students in a class were asked the distance in km between their homes and the school. The raw data collected in the survey is as follows:

6 11 8 11 7 9 11 8 11 8

7 6 13 10 2 3 4 2 7 12

2 9 4 12 7 4 9 8 2 6

10 1 6 9 1 8 2 7 10 1

What are the arithmetic mean and median of the given data?

Distribute the given data in three class intervals, viz. < 5, 5 - 10 and >10 and construct a grouped frequency table. Then construct a pie chart to display the given information.

3. The data given below represents the percentage of marks secured by 40 students in an examination.

Tabulate the given data in a grouped frequency table with 5 classes, the first class interval being 30-40. Then construct a histogram to display the given information.

Teacher's Note

Understanding mode, mean, and median helps students analyze real-world data like survey results and exam scores, which they encounter in school projects and competitions.

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