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Author Question: A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is ... (Read 60 times)

azncindy619

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on: Jun 19, 2018
A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90 . The scores are normally distributed. The proportion of scores between 300 and 400 is _________.
 
  a. 0.3665 c. 0.8533
  b. 0.4868 d. 0.1203

Question 2

A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90 . The scores are normally distributed. The raw score that lies at the 90th percentile is _________.
 
  a. 615.20 c. 616.10
  b. 384.80 d. 383.90


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trampas

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Reply #1 on: Jun 19, 2018
Answer to Question 1

D

Answer to Question 2

A


azncindy619

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Reply 2 on: Jun 19, 2018
Great answer, keep it coming :)

juliaf

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Reply 3 on: Yesterday
Wow, this really help

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