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Author Question: The speed of cars passing through a checkpoint follows a normal distribution with a mean of 62.6 ... (Read 85 times)

ETearle

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on: Jun 24, 2018
The speed of cars passing through a checkpoint follows a normal distribution with a mean of 62.6 miles per hour and a standard deviation of 3.7 miles per hour. What is the probability that the next car passing by will be traveling between 61 and 70 miles per hour?

Question 2

If the original population from which the samples were drawn is not normally distributed, then the sampling distribution of the mean will be ___________________ _ for large sample sizes.
 Fill in the blank(s) with correct word


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bbburns21

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Reply #1 on: Jun 24, 2018
Answer to Question 1

0.6436

Answer to Question 2

approximately normal


ETearle

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

dreamfighter72

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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