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Author Question: A student obtains a sample of college students by interviewing her friends. A) Yes B) ... (Read 72 times)

Bernana

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on: Aug 2, 2018
A student obtains a sample of college students by interviewing her friends.
 
  A) Yes B) No

Question 2

Scores on the final exam in Math 160 have a mean of 73 and standard deviation of 7.8.If 24 students are randomly selected, find the probability that the mean of their test scores is less than 70.
 
  A) 0.1006 B) 0.9699 C) 0.0278 D) 0.0301


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Yixagurpuldink

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Reply #1 on: Aug 2, 2018
Answer to Question 1

B

Answer to Question 2

D


Bernana

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Reply #2 on: Aug 2, 2018
Thanks


Yixagurpuldink

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Reply #3 on: Aug 2, 2018
Welcome :)


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