MATHEMATICS HIGH SCHOOL

The Museum of Science in Boston has an exhibit in which metal balls drop down a chute, bounce around, and wind up in one of 21 bins. After 1000 balls have dropped, the heights within the bins clearly follow a bell-shaped curve. If the standard deviation is 3 bins, approximately how many balls are in bins 1 through 7?A) 100
B) 160
C) 50
C) 330

Answers

Answer 1
Answer: if you have 21 bins then the 'middle bin' is bin 11 (starting at 1)So the 'mean' of this distribution is 11.The SD is 3so using the above calculator (or your own tables ) you get that the probability of a ball being in bin 7 or less is .091

A is you answer
Answer 2
Answer: A.100 so make sure you put your answer

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Answer:

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Answers

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Answers

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Answer:

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Answers


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Answers

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Answers

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