Question

John's utility bills for the last five months are $23.45, $23.73, $18.01, $25.36, and $27.11. Find John's mean utility bill over this period.

Answer 1

John's mean utility bill over the last five months is $23.53, calculated by adding up all his utility bills and dividing by the number of months.

Step-by-step explanation:

To find John's mean utility bill over the last five months, we will add up all of his utility bills and then divide that total by the number of months. The utility bills are:

• $23.45
• $23.73
• $18.01
• $25.36
• $27.11

When we add these up, we get:

$23.45 + $23.73 + $18.01 + $25.36 + $27.11 = $117.66

Now, we divide this total by the number of months, which is 5:

$117.66 ÷ 5 = $23.53

Therefore, John's mean utility bill over this five-month period is $23.53.