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Author Question: A coffee machine is programmed to fill a cup with a mean of 6 oz. of coffee and a standard deviation ... (Read 111 times)

imanialler

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on: Jul 25, 2018
A coffee machine is programmed to fill a cup with a mean of 6 oz. of coffee and a standard deviation of .3 oz. Assume that the amount of fill is normally distributed.
 
  a. What is the probability that a randomly selected cup contains between 6 oz. and 6.54 oz. of coffee?
  b. What percentage of the cups filled contain more than 5.25 oz. of coffee?

Question 2

Research has shown that math grades and math anxiety scores are correlated. Would you expect the correlation to be positive or negative? Explain.
 
  What will be an ideal response?


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katieost

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Reply #1 on: Jul 25, 2018
Answer to Question 1

a. .4641
b. 99.38

Answer to Question 2

negative; as math grades go up, math anxiety scores go down.


imanialler

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Reply 2 on: Jul 25, 2018
:D TYSM

elyse44

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

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