Both mean and median are measures of the center of a set of data.

Mean is normally preffered to the median except if there is an outlier that has a tendency to affect the mean.

An outlier is a data point that significantly differs from the other data points in a sample.

In the data set above, there is no outlier that will affect the mean.

Therefore, he should use the mean because there are no outliers that affect the mean.

Answer: It would be between 7 and 8

No because the exact opposite of -3 would be 3.

The first one is 2,314,572,763 the other one is 7,156,134,563

The answer is c because all you are doing here is subbing the variable r for 5b.