80% of 80 is 64. Hope this helps:)
Answer:
i dont know, ive never learned this haha. i sat here for at least 45-50 minutes trying to figure it out. sorry :/
Step-by-step explanation:
Answer: The mean increases by 3
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The original data set is
{50, 76, 78, 79, 79, 80, 81, 82, 82, 83}
The outlier is 50 because it is not near the group of values from 76 to 83 which is where the main cluster is.
The original mean is M = (50+76+78+79+79+80+81+82+82+83)/10 = 77
If we take out the outlier 50, the new mean is N = (76+78+79+79+80+81+82+82+83)/9 = 80
So in summary so far
old mean = M = 77
new mean = N = 80
The difference in values is N-M = 80-77 = 3
So that's why the mean increases by 3
The most you can make is 16 because you need a dvd in each prize even though there is still pretzels and popcorn