Question

the arithmetic mean of 30 scores is 21. Find the sum of scores​

Answer 1

Answer:

630

Step-by-step explanation:

Given:-

Arithmetic Mean of the scores = 21

Number of score = 30

To find:-

Sum of the scores

Solution:-

Let sum of scores represent $x$

Arithmetic Mean of the scores = Sum of the scores ÷ Number of scores

21 = $\frac{x}{30}$

$21$ × $30 = x$

$x = 630$

∴ The sum of the scores is 630