1. In a class there are 30 pupils. The teacher decides to take a probability sample of 10 pupils to estimate the mean height of the pupils in the class.

1 Alan 10 Rachel 19 Sacha 28 Salif

2 Lucy 11 Ben 20 Halim 29 Annie

3 Tom 12 Emma 21 Daniella 30 Karen

4 Azar 13 Hannah 22 Joseph

5 Jayne 14 Grace 23 Anna

6 Nadima 15 Miles 24 Sophie

7 Matthew 16 James 25 Kathryn

8 Sushi 17 Joshua 26 Helen

9 Mohammed 18 Lisa 27 Fatoumata

Row\Column	1	2	3	4	5	6
1	98859	09884	45275	09467	93026	32912
2	26604	95099	93751	00590	93060	64776
3	82984	65780	94428	30160	86023	52284
4	70888	14063	96700	83008	17579	71321
5	77803	61872	86245	68220	66267	01379
6	11304	01658	82404	46728	35228	49673
7	53552	51215	45611	83927	00772	99295

1. Beginning in row 1, column 5, and proceeding horizontally in the given random number table, select the first 5 simple random sample of pupils from the list.

1. Select the first 5 systematic sample of pupils from the list using the random numbers in row 3, column 5, as the starting point for your selection.

1. A large school has 1800 pupils. The headteacher wants to find out how far the pupils have to travel to school. Explain is it required to use sampling? Why? What type of sampling methods do you recommend? Why?