Question 16 — IGCSE 0580 March 2025 Paper 22
Cambridge IGCSE Mathematics 0580, Extended tier, non-calculator. Topic: Statistics · Averages (discrete data). Worth 6 marks.
Open in interactive question bank →
Question text
16 The stem-and-leaf diagram shows the mass of each of 13 packets.
3 1 2 8
4 0 1 2 3 3 8
5 1 2 3 4
Key: 3 q1 represents 31 g
(a) Work out the interquartile range.
............................................... g [3]
(b) Two of these packets are chosen at random.
Find the probability that the one packet has a mass of more than 50 g and the other packet has a
mass of less than 50 g.
................................................. [3]
(cid:300)(cid:219)(cid:266)(cid:174)(cid:288)(cid:180)(cid:237)(cid:200)(cid:245)(cid:207)(cid:298)(cid:197)(cid:266)(cid:223)(cid:249)(cid:183)(cid:256)(cid:215) [Turn over
© UCLES 2025 (cid:300)(cid:224)(cid:286)(cid:251)(cid:210)(cid:294)(cid:244)(cid:270)(cid:229)(cid:255)(cid:244)(cid:265)(cid:279)(cid:238)(cid:280)(cid:178)(cid:265)(cid:258) 0580/22/F/M/25
(cid:293)(cid:293)(cid:293)(cid:277)(cid:245)(cid:181)(cid:197)(cid:213)(cid:197)(cid:245)(cid:229)(cid:197)(cid:261)(cid:277)(cid:261)(cid:181)(cid:245)(cid:213)
M
SIHT
NI
ETIRW
TON
OD
NIGRAM
SIHT
NI
ETIRW
TON
OD
NIGRAM
SIHT
NI
ETIRW
TON
OD
NIGRAM
SIHT
NI
ETIRW
TON
OD
NIGRAM
SIHT
NI
ETIRW
TON
OD
* 0000800000014 *
14
(cid:44)(cid:1)(cid:1)(cid:1)(cid:1)(cid:9)(cid:1)(cid:1)(cid:1)(cid:1)(cid:1)(cid:1)(cid:2)(cid:5)(cid:44)
NIGRAM
Mark scheme
