Kilolitres of water used Number of users
10 -< 13 5
13 -< 16 9
16 -< 19 14
19 -< 22 15
22 -< 25 7
5.1 Calculate the mean, mode and the median using the frequency distribution table
5.2 Calculate the variance, standard deviation and coefficient of variance
5.3 Calculate the skewness of the data
5.4 Calculate the inter-quartile range
5.5 Calculate the 65th percenti
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