Question

.Find the mean, median, mode and range of the following data. 4,6,12,7,9,13,13,9,9,9,7,7,8.​

Answer 1

Step-by-step explanation:

Sum of all observation

Mean= -------------------------------

Number of observations

4+6+12+7+9+13+13+9+9+9+7+7+8

Mean= -----------------------------------------------

13

133

Mean= ------

13

Mean =10

Median= [( n\2 +1)]

Median= 13\2 +1

= 14/2

=7th term =13

Range=Biggest number- smallest number

= 13-4

= 9

Hope it helps