Question

Find the value of x such that the data set has the given mean.

Answer 1

`mean = (31.7+42.8+26.4+x)/(4) \\\\35 = (31.7+42.8+26.4+x)/(4) \\\\\\35*4 = 31.7+42.8+26.4+x \\\\140 = 100.9 + x\\\\x= 39.1`

option 3

Answer 2

39.1

Explanation:

31.7 + 42.8 + 26.4 = 100.9

35 times 4 = 140

140 - 100.9 = 39.1