Grouped Frequency Tables Quiz | GCSE Maths Edexcel IGCSE Higher | Cognito

Welcome to the Quiz!

This quiz contains 5 questions from a mix of 1 subtopics.

Which is the modal class?

age (years)	frequency
0 < a $\leq$ 5	4
5 < a $\leq$ 10	7
10 < a $\leq$ 15	3
15 < a $\leq$ 20	5

0 < a ≤ 5

5 < a ≤ 10

15 < a ≤ 20

10 < a ≤ 15

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1

Which class contains the median value?

age (years)	frequency
0 < a $\leq$ 5	4
5 < a $\leq$ 10	7
10 < a $\leq$ 15	3
15 < a $\leq$ 20	5

15 < a ≤ 20

0 < a ≤ 5

5 < a ≤ 10

10 < a ≤ 15

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1

Calculate the mean value.

age (years)	frequency
0 < a $\leq$ 5	4
5 < a $\leq$ 10	7
10 < a $\leq$ 15	3
15 < a $\leq$ 20	5

12.4 years

11.4 years

8.5 years

9.9 years

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Which is the modal class?

Height (cm)	frequency
140 < h $\leq$ 150	7
150 < h $\leq$ 160	10
160 < h $\leq$ 170	15
170 < h $\leq$ 180	8

160 < h ≤ 170

140 < h ≤ 150

150 < h ≤ 160

170 < h ≤ 180

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Calculate the mean height.

Height (cm)	frequency
140 < h $\leq$ 150	7
150 < h $\leq$ 160	10
160 < h $\leq$ 170	15
170 < h $\leq$ 180	8

161 cm

154 cm

174 cm

168 cm

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