Question

Given the mean is 19, find the value of x. -3, 10, 22, x, 28​

Answer 1

The value of x = 38

Explanation:

As we know that

The mean of a data set is the sum of the terms divided by the total number of terms.

Using math notation we have:

Mean = (Sum of terms) ÷ (Number of terms)

As

• Number of terms = 5

• Mean = 19

• Sum of terms = -3 + 10 + 22 + x + 28​

so mean the equation becomes

Mean = (Sum of terms) ÷ (Number of terms)

19 = (-3+10+22+x+28) ÷ 5

19 × 5 = -3+10+22+x+28

95 = x + 57

x = 95 - 57

= 38

Therefore, the value of x = 38