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Author Question: The probability that an individual has 20-20 vision is 0.12. In a class of 70 students, what is the ... (Read 543 times)

stock

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on: Jul 24, 2018
The probability that an individual has 20-20 vision is 0.12. In a class of 70 students, what is the mean and standard deviation of the number with 20-20 vision in the class?
 
  A) mean: 8.4; standard deviation: 2.71882327 B) mean: 70; standard deviation: 2.71882327
  C) mean: 8.4; standard deviation: 2.89827535 D) mean: 70; standard deviation: 2.89827535

Question 2

True or False: If a residual plot shows an almost straight line then a linear model is appropriate.
 
  A) False B) True


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iceage

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Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

A


stock

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Reply #2 on: Jul 24, 2018
Thanks


iceage

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Reply #3 on: Jul 24, 2018
Welcome :)


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