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Author Question: A random variable x is uniformly distributed between 45 and 150. a. Determine the probability of x ... (Read 83 times)

newbem

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on: Jun 24, 2018
A random variable x is uniformly distributed between 45 and 150.
 a. Determine the probability of x = 48.
  b. What is the probability of x  60?
  c. What is the probability of x  50?
  d. Determine the expected vale of x and its standard deviation.

Question 2

In determining the sample size necessary to estimate a population proportion, which of the following is NOT needed?
 a. the maximum margin of error that can be tolerated
  b. the confidence level required
  c. a preliminary estimate of the true population proportion p
  d. the mean of the population


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Animal_Goddess

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

a. 0
b. .1429
c. .9524
d. 97.5, 30.31

Answer to Question 2

d


newbem

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Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

diana chang

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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