4MA0 Higher June 2015 Paper 3R Q6

EdexcelHigherOld spec3 marksAverages (including IQR)

6 The mean height of a group of 6 children is 165 cm.
One child, whose height is 155 cm, leaves the group.
Find the mean height of the remaining 5 children.

(3)

Scheme	Marks
6 × 165 (= 990)	M1
(“990” – 155) ÷ 5	M1 dep
167	A1
	(3)

Notes