All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions.

(i)

(a)

Let X be the number of cakes containing fruit, out of 6.

(b)

(ii)

Let Y be the number of packets with at most 2 cakes containing fruit, out of 8.

(iii)

Let W be the number of packets with at most 2 cakes containing fruit, out of 150.

Since is large, and ,

approximately.

by continuity correction

### KS Comments

Students must call all variables out carefully as they denote different things. And many still forget to perform continuity correction.

2014 A-level H1 Mathematics (8864) Suggested Solutions | The Culture[…] 2014 A-level H1 Mathematics (8864) Question 9 Suggested Solutions […]