Question

4. The following are weights (in kg) of 12 people,
70,62,54,57,62,84,75,59,62, 65, 78,60
a) Find the mean for the given data.
b) How many people weigh above the mean weight?
c) Find the range for the given data.​

Answer 1

a) mean = sum of observations/ no.of observations
= 70+62+54+57+62+84+75+59+62+65+78+60/ 12
= 788/12
= 65.66666....
= 66 ( approx )
b) above the mean weight = 84 ; 75 ; 70 ; 78.
c) range = maximum - minimum
maximum = 84
minimum = 54
= 84-54
= 30.

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