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Author Question: In a normal distribution with a mean of 90 and a standard deviation of 10, what percentage of scores ... (Read 178 times)

cabate

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  • Posts: 537
on: Jun 20, 2018
In a normal distribution with a mean of 90 and a standard deviation of 10, what percentage of scores fall between 80 and 110?
 
  a. 13.5
  b. 34
  c. 68
  d. 81.5

Question 2

In a normal distribution with a mean of 50 and a standard deviation of 5, what percentage of scores fall between 45 and 55?
 
  a. 13.5
  b. 34
  c. 68
  d. 95


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shewald78

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Reply #1 on: Jun 20, 2018
Answer to Question 1

d

Answer to Question 2

c


cabate

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  • Posts: 537
Reply 2 on: Jun 20, 2018
Gracias!

kthug

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  • Posts: 332
Reply 3 on: Yesterday
Great answer, keep it coming :)

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