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Author Question: A teacher reports that the class scores are generally distributed according to a bell curve. This ... (Read 107 times)

brutforce

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on: Jul 31, 2018
A teacher reports that the class scores are generally distributed according to a bell curve. This means:
 
  a. the mean, median, and mode have different values
  b. the left half and the right half are not symmetrical
  c. approximately 95 of the scores fall between -1 and +1 standard deviation from the mean
  d. 100 of the scores fall between -3 and +3 standard deviations from the mean

Question 2

A researcher determines that there is a positive correlation between sleep and test scores. This means as the amount of sleep is increased then test scores:
 
  a. increase
  b. decrease
  c. remain the same
  d. cannot be determined


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LegendaryAnswers

  • Sr. Member
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Reply #1 on: Jul 31, 2018
Answer to Question 1

d

Answer to Question 2

a


brutforce

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Reply 2 on: Jul 31, 2018
Gracias!

ktidd

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Reply 3 on: Yesterday
Wow, this really help

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