Question

Find the range and the mean of the following values.
16, 18, 13,13, 14, 21, 15, 18, 12, 17​

Answer 1

Answer:

mean =15.2

Step-by-step explanation:

mean = sum of observations÷ no of observations = 152÷10

Answer 2

Answer:

mean = 15.7 and range = 9

Step-by-step explanation:

mean = sum of all observations / total no. of observations

=16+18+13+13+14+21+15+18+12+17/10

= 157/10

= 15.7

here observations means the values which are given to us

To find range, first arrange all the observations in ascending order i.e. arrange them in order of smallest to largest number, like this

12,13,13,14,15,16,17,18,18,21

now subtract the smallest number from the largest number i.e.

21-12= 9