Question

Find the mean of 5,6,9,10,6,12,3,6,11,10

Answer 1

Given,

Observations 5,6,9,10,6,12,3,6,11,10

Number of observations = 10

Mean = sum of observations/ number of observations

= 5+6+9+10+6+12+3+6+11+10/10

= 78/10

=7.8

Answer 2

Answer:

Step-by-step explanation:

First arrange it in ascending order

3, 5, 6, 6, 6, 9, 10, 10, 11, 12

mean = 3 + 5 + 6 + 6 + 6 + 9 + 10 + 10 + 11 + 12

         = 78

Mean age = sum of all numbers ÷ Total number of students

                 = 78 ÷ 10

                 = 7.8

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