Question

The mean length of a group of fish is 14.2 inches. A fish that is 41 inches long joins the group. How does this fish’s length affect the mean

Answer 1

The mean, or average, will increase.

Explanation:

Since the mean is simply the average of a group of numbers a 41 inch fish would make the mean, or average, larger.

14.2 + 41 = 55.2

55.2 / 2 = 27.6

The new mean is 27.6 inches.