Question

The mean of 5 observation is 15,the sum of 5 observation is________

Answer 1

Answer:

75 is the answer as you know

Answer 2

Hey Mate❤️❤️

__________________

Let Sum of observations be x

$mean \: = \: \frac{sum \: of \: observations}{no. \: of \: observations} \\ 15 = \frac{x}{5} \\ 15 \times 5 = x \\ 75 = x$

Therefore, sum of observations(x) is $\boxed{75}$