Question

The mean of the numbers 11,13,17, 15 and 40 is​

Answer 1

Given : Numbers  11,13,17, 15 and 40

To Find :  Mean of the numbers

Solution:

Mean of n  numbers  = Sum of n numbers / n

11,13,17, 15 and 40

n  = 5

Sum of 5 numbers =  11 + 13 + 17 + 15 + 40

= 96

Mean = 96/5

Mean = 19.2

The mean of the numbers 11,13,17, 15 and 40 is​ 19.2

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Answer 2

SOLUTION

TO DETERMINE

The mean of the numbers 11 , 13 , 17 , 15 and 40

FORMULA TO BE IMPLEMENTED

For a given set of numbers Mean is obtained using the formula

$\displaystyle \sf{Mean = \frac{ Sum \: of \: the \: observations \: }{ Number \: of \: observations }}$

EVALUATION

Here the given observations are

11 , 13 , 17 , 15 and 40

Number of observations = 5

Sum of the observations

= 11 + 13 + 17 + 15 + 40

= 96

∴ Mean

$\displaystyle \sf{ = \frac{ Sum \: of \: the \: observations \: }{ Number \: of \: observations }}$

$\displaystyle \sf{ = \frac{96}{5} }$

$\displaystyle \sf{ = 19.2}$

FINAL ANSWER

Hence the required mean = 19.2

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