Statistics

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Question 28

waecmaths question: 

Scores

0 – 4

5 – 9

10 – 14

Frequenct

2

1

2

The table shows the distribution of the scores of some students in a test. Calculate the mean score.

Question 27

waecmaths question: 

The scores of twenty students in a test are as follows 44, 47, 48, 49, 50, 51, 52, 53, 53, 54, 58, 59, 60, 61, 61, 63, 65, 67, 70, 73, 75. Find the third quartile

Question 26

waecmaths question: 

The population of students in a schools is 810. If this is represented on a pie chart. Calculate the sectoral angle for a class of 72 students.

Question 29

waecmaths question: 

Ages

1

2

3

4

5

Number of Children

2

3

5

6

4

The table shows the ages (in years) of twenty children chosen at random from a community

What is the median of the distribution?

Question 28

waecmaths question: 

Ages

1

2

3

4

5

Number of Children

2

3

5

6

4

The table shows the ages (in years) of twenty children chosen at random from a community

What is the mean age?

Question 26

waecmaths question: 

The table gives the distribution  of the marks of a number of students in a test

Marks

1

2

3

4

5

6

Frequency

5

3

6

4

2

5

 

Find the mode of the distribution

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