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Author Question: The incomes of scientists working for Global Research are normally distributed with a mean of 38,500 ... (Read 72 times)

awywial

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on: Jul 25, 2018
The incomes of scientists working for Global Research are normally distributed with a mean of 38,500 and a standard deviation of 5,250.
 
  a. What percentage of the scientists earn more than 46,375?
  b. What is the probability that a particular scientist earns between 29,575 and 47,425.

Question 2

Suppose that a normal random variable x has a mean  = -4.6 and a standard deviation  = 1.3. Find the z score corresponding to
 
  a. x = -8.175
  b. x = -2
  c. x = -4.99


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alexisweber49

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Reply #1 on: Jul 25, 2018
Answer to Question 1

a. 6.68
b. .9108

Answer to Question 2

a. -2.75
b. 2
c. -.3


awywial

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Reply 2 on: Jul 25, 2018
Thanks for the timely response, appreciate it

Zebsrer

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Reply 3 on: Yesterday
Wow, this really help

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