Everything Maths Grade 10

c)Find the mean age of the men in the factory using the original data.

29.The example below shows a comparison of the amount of dirt removed by four brands of detergents

(brandsAtoD).

10 12 14 16 18 20 22

A

B

C

D

Amount of Dirt Removed (mg)

a)Which brand has the biggest range, and what is this range?

b)For brandC, what does the number 18 mg represent?

c)Give the interquartile range for brandB.

d)Which brand of detergent would you buy? Explain your answer.

For more exercises, visit http://www.everythingmaths.co.za and click on ’Practise Maths’.

1.2GNM 2.2GNN 3.2GNP 4.2GNQ 5.2GNR 6.2GNS

7.2GNT 8.2GNV 9.2GNW 10.2GNX 11.2GNY 12.2GNZ

13.2GP2 14.2GP3 15.2GP4 16.2GP5 17.2GP6 18.2GP7

19.2GP8 20.2GP9 21.2GPB 22.2GPC 23.2GPD 24.2GPF

25.2GPG 26.2GPH 27.2GPJ 28.2GPK 29.2GPM

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388 10.6. Chapter summary