Page 8 - Math SL HB Sem 3

Statistics And Probability

Example:

Find the mean of the numbers 24 ,26- 27.29,12,42.

Example:
Find the mean from the following frequency distribution_

x r0 ll t2 I] l4
Trequency (x) 5 l0 lr 8 6

Eramplc:

The J0 mernbers ofan orchastra were asked how many instruments each courtr pray- 1.he
results are set our in the frequency distribution. Calcurate the mean number of instruments
played-

Number of instruments, x t234t
I I0 5 I I

q