1. Calculating the mean Example Work out the mean for the set of numbers below 4, 7, 8, 4, 7 Example Work out the mean for the numbers given below 1, 7, 8, 9, 3, 5, 8, 7

2. Example Work out the mean for each of the following sets of data a)1,7,9,11 b)2,8,7,5,4,6, 3,7,12 c)1,4,8,9,12,16,18,20 d)13,15,17,23 e)21,37,41

3. Example A cricketer scored 39, 87, 12, 0, 17, 103, 68 and 66 in eight innings. Calculate the mean score if the cricketer was not out in one of the eight innings. Example The numbers of words on five consecutive pages of a novel are 262, 203, 182, 272, 212. What is the average number of words to a page?

4. Example The speeds of several cars were measured as they travelled down a road. The speeds (in mph) were 50, 53, 71, 45, 62, 50, 61, 74. Find the arithmetic mean speed of the cars.

5. Example The heights of five men are 177.8cm, 175.3cm, 174.8cm, 179.1cm and 176.5cm. What is the mean height of these five men?

6. Example The attendance at seven football matches was 16804, 12392, 5418, 9265, 29761, 25424 and 14910. Find the mean attendance.