Answer:
Option 3: mean increases by 3
Step-by-step 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)
1, 6, 11, 16, 21, 26, 31, 36, 41, 46, 51, 56, 61, 66, 71.
1908
Step-by-step explanation:2% of 1800 is 36 36 x 3 is 108 + 1800 =1908
4
