Question

Complete the set of data with one value so that the mean of the data is 24.

26, 35, 10, 18, 15, 37, 25, 20, 15, _

Answer 1

Answer:39

Explanation:

Answer 2

39

Explanation:

let the missing value be x,

We note that the number of data values= 10

Sum of all data values,

= 26+35+10+18+15+37+25+20+15+x

= (201 + x)

We are given that the mean is 24

Recall that,

mean = sum of data values ÷ number of data values

substituting the known values from above,

24 = (201 + x) ÷ 10 (multiply both sides by 10)

(24)(10) = (201 + x)

240 = 201 + x (subtract 201 from both sides and rearrange)

x = 240 - 201

x = 39

Hope this helps!