Question

the mean of 5 observations is 4 .Find the sum of 5 observations​

Answer 1

Answer:

20

Step-by-step explanation:

Mean = Total / Number of observations

4 = total / 5

Therefore, Total or sum of 5 observations = 4 x 5 = 20

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Answer 2

Answer:

20

Step-by-step explanation:

given,                              

mean of  5 observations = 4

sum of 5 observation = ?              

mean of the numbers is equal to the sum of the number divided by the total numbers.                                            

$mean = \dfrac{sum\ of\ observation}{no.\ of\ observation}$

$4= \dfrac{sum\ of\ observation}{5}$  

sum of observation = 5 x 4              

sum of observation = 20