Calculate the mean absolute deviation of the Restaurant A's service ratings. [Note: Type your answer as a number. Do not round.]

Add all the absolute deviations and divide by number of swimmers.

Step-by-step explanation:

To find the mean absolute deviation of any data we need to follow the following steps:

Start by finding the mean of the data set.

Find the absolute value of the difference between each data value and the mean.

Find the sum of the absolute values of the differences.

Divide the sum of the absolute values of the differences by the number of data values.

Step-by-step explanation:

a negative exponent is translated as follows:

so, we have