Well since the formula for the arithmetic mean is 
thourgh 
will be each of the numbers (2, 63, 88, 10, 72, 99, 38) and n would be the number of numbers being added. You have 7 numbers being added making n 7 so your equation would be 
The bumper car ride at the state fair has 2 red cars, 3 green cars, and 3 blue cars. Janet is first in line for the ride and is
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