Algebra-1

1: Effect on the Mean:

The mean is the average of all the scores.

Adding 5 points to each score increases the sum of the scores, but since each score gets the same increase, the mean also increases by 5.

Original mean: 75

So the new mean is .

2: Effect on the Median:

The median is the middle value in an ordered list of scores.

Adding 5 points to every score shifts each score by the same...