Links to other Year 9 Revision exercises - Ex 1.1 | Ex 1.2 | Ex 1.3 | Ex 1.4 | Ex 1.5 | Ex 1.7 | Ex 2.1 | Ex 2.2 | Ex 2.3 | Ex 2.4 | Ex 3.1 | Ex 3.2 | Ex 3.3 | Ex 3.4 | Ex 3.5 | Ex 4.1 | Ex 4.2 | Ex 4.3 | Ex 4.4 | Ex 4.5

Year 9 - Answers for Revision exercise 1.7

These answers are given merely to help with revision. In order to get full marks all working out must be shown.

2	a)		mode 8, median 9, range 6
7	a)	i)	42 cm
		ii)	20 cm
	b)		h f 18 < h ≤ 23 7 23 < h ≤ 28 24 28 < h ≤ 33 8 33 < h ≤ 38 17 38 < h ≤ 43 4
	c)	i)	29
		ii)	39
	d)		23 < h ≤ 28
	e)
8	a)		36
	b)		100 s
	c)		Yes, (18 out of 36)
	d)		Impossible to say. 36 were timed but more may have run