Question

When the outliers are removed, how does the mean change? (2 points)

Answer 1

Option 3: mean increases by 3

Explanation:

Current mean:

[50+76+78+2(79)+80+81+2(82)+83] ÷ 10

= 77

Without the outliers:

[76+78+2(79)+80+81+2(82)+83] ÷ 9

= 80

80 - 77 = 3 (increase)