Question

If the formula x-¹, is used to find the mean of the following sample,ni-twhat is the value of n?43, 36, 93, 2, 28, 83, 10, 22, 9, 84, 41, 3, 13, 20, 66A. 14B. 15C. 16D. 13

Answer 1

Explanation:

The formula to calculate the mean is

`\bar{x}=(1)/(n)\sum_{i\mathop{=}1}^nx_i`

where the symbol

∑

represents a summation from the first value

`x_1\rightarrow first\text{ value}`

to the last value

`x_n\rightarrow last\text{ value}`

where n represents the number of elements in the data set.

In this case, the data set has 15 elements

That means that the value of n is 15:

`n=15`

whic