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Author Question: A teacher determines that the correlation between eating breakfast and doing well on the test is ... (Read 133 times)

Tirant22

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on: Jul 31, 2018
A teacher determines that the correlation between eating breakfast and doing well on the test is zero. This means:
 
  a. a perfect correlation exists
  b. there is an absence of a correlation
  c. a negative correlation exists
  d. the correlation cannot be determined

Question 2

If the researcher knows that the mean is 60 and the standard deviation is 6, then the majority of the scores falling between +1 or -1 standard deviation of the mean fall between:
 
  a. 60 and 66
  b. 54 and 60
  c. 54 and 66
  d. Not enough information is provided


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ktidd

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Reply #1 on: Jul 31, 2018
Answer to Question 1

b

Answer to Question 2

c


Tirant22

  • Member
  • Posts: 532
Reply 2 on: Jul 31, 2018
Excellent

diana chang

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Reply 3 on: Yesterday
Wow, this really help

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