Question

what is the mean of 11 12 13 14 15 16 17 18 19 20​

Answer 1

Answer:

Here is your answer......

Mean = Sum of all Observations

------------------------------------- (formula)

Number of Observations

Step-by-step explanation:

Mean = 11+12+13+14+15+16+17+18+19+20

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10

Mean = 155

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10

Mean = 15.5

Answer 2

Given,

Series = 11, 12, 13, 14, 15, 16, 17, 18, 19, 20​

Total observation = 10

To Find,

Mean =?

Solution,

Series = 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

The mean is given by  the sum of all observations divided by  the total number of observations that is

Mean = The sum of all observations / Total observation

Mean =  (11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20​) / 10

Mean = 155 / 10

Mean = 15.5

Hence,  the mean of 11, 12, 13, 14, 15, 16, 17, 18, 19, 20​ is 15.5