Lionel has just received his monthly credit card statement. He placed 9
charges on his card in the last month with a mean of $29.02
per charge. He knows that 8
of the charges were as follows:
$29.88,$35.21,$32.93,$28.18,$34.08,$26.89,$26.76,$36.28
Determine the amount of the 9
th charge.
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To find the amount of the 9th charge, we first need to find the total amount of the 8 charges Lionel already knows.
Total amount of the 8 charges = $29.88 + $35.21 + $32.93 + $28.18 + $34.08 + $26.89 + $26.76 + $36.28
Total amount of the 8 charges = $249.21
Now, we can find the total amount Lionel spent on all 9 charges by multiplying the mean of $29.02 by the total number of charges (9).
Total amount of all 9 charges = $29.02 * 9
Total amount of all 9 charges = $261.18
Therefore, the amount of the 9th charge is $261.18 - $249.21 = $11.97