Question

a television commercial compared monthly car insurance prices offered by 8 companies. they were: $86.00 $87.00 $86.00 $85.00 $87.00 $89.00 $83.00 $86.00 what was the mean cost of insurance? round your answer to the nearest whole number.

Explanation:

Step1: Sum the insurance costs

The costs are $86, $87, $86, $85, $87, $89, $83, $86.
Sum = \( 86 + 87 + 86 + 85 + 87 + 89 + 83 + 86 \)
Calculate step - by - step:
\( 86+87 = 173 \); \( 173+86 = 259 \); \( 259+85 = 344 \); \( 344+87 = 431 \); \( 431+89 = 520 \); \( 520+83 = 603 \); \( 603+86 = 689 \)

Step2: Calculate the mean

Mean = \( \frac{\text{Sum}}{\text{Number of values}} \), number of values \( n = 8 \).
Mean = \( \frac{689}{8} = 86.125 \)

Step3: Round to nearest whole number

\( 86.125 \) rounded to nearest whole number is \( 86 \).

Answer:

\( 86 \)