Question

Given the following set of expenses: $7,

$16.50, $12, $6.50, $10
a. Find the difference between the
greatest and least expense.
b. Find the mean of the greatest and
least expense.
c. Find the mean of the entire set of
data.

Answer 1

See below in bold.

Explanation:

Greatest = $16.50, least = $6.50

a. Difference is $10.

b. Mean of greatest and least is (16.50 + 6.50 ) / 2 = $12.50.

c. Mean of the data set = (7 + 16.50 + 12 + 6.50 + 10) / 5 = 52/5

= $10.40.

Answer 2

a. 16.50-6.50= $10.00

b. 16.50+6.50/2= 11.50

c. 16.50+7+12+6.50+10/5= 10.40

These are the correct answers.