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Author Question: At a carnival game, you'll win a prize if you pick a rubber duck out of a pool that has a red dot on ... (Read 59 times)

aabwk4

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on: Jun 20, 2018
At a carnival game, you'll win a prize if you pick a rubber duck out of a pool that has a red dot on the bottom. If only 3 ducks out of 95 present have such a dot, what is your probability of winning a prize?
 
  What will be an ideal response?

Question 2

An article in a professional journal reports the zscore for the study's sample mean was 1.4 . The authors also reported their sample mean was 97 with a sample size of 49 and the population mean was 102 . However, they did not give the population standard deviation. What was their population standard deviation?
 
  What will be an ideal response?


Edwyer

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

3/95 = 0.03 (or 3)

Answer to Question 2

25


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