Question

DATA HANDLING
The heights of 5 friends (in cm) in a group are given as below:
175. 172. 181. 167. 180
a) What is the mean height?
b) How many friends have height more than the mean height?
c) The friend whose is 167 cm tall leaves the group. What is the new mean height of the
remaining friends?
d) Find range?​

Answer 1

Answer:

A) Mean- 175+172+181+167+180/5

=175

therefore the mean is 175

b) 2 friends which are 180 and 181

c)new mean= 175+172+181+180/4

=177

therefore new mean in 177

d)181 - 167 =14

therefore range is 14

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