Question

find the mean and the range of the following data;2,2,,3,5,5,7,8

Answer 1

Answer :

a) Mean = 4.57, Range= 6

(b) Mean=5.47, Range=8

(c) Mean = 5, Range =5

(d) Mean= 5, Range=3

Step-by-step explanation:

the right option is a)

arithmetic mean = sum of all observations

__________________

number of observations

= 2 +2+3+5+5+7+8

_____________

7

32 ÷ 7 = 4.57

Range = highest value - lowest value

highest value = 8

lowest value = 2

so 8-2 = 6