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Author Question: A recent survey in Montana revealed that 60 of the vehicles traveling on highways, where speed ... (Read 83 times)

leilurhhh

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on: Aug 1, 2018
A recent survey in Montana revealed that 60 of the vehicles traveling on highways, where speed limits are posted at 70 miles per hour, were exceeding the limit. Suppose you randomly record the speeds of ten vehicles traveling on US 131 where the speed limit is 70 miles per hour. Let X denote the number of vehicles that were exceeding the limit. Find the expected number of vehicles that are traveling on Montana highways and exceeding the speed limit.

Question 2

The difference between the lower class limits of adjacent classes provides the _____.
 a. number of classes
  b. class limits
  c. class midpoint
  d. class width


cici

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Reply #1 on: Aug 1, 2018
Answer to Question 1

E(X) = 6

Answer to Question 2

d


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leilurhhh

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Reply #2 on: Aug 1, 2018
Both answers were spot on, thank you once again


cici

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Reply #3 on: Aug 1, 2018
Great! Please up vote :D


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