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Author Question: A direct marketing company believes that the probability of making a sale when a call is made to an ... (Read 69 times)

Beheh

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  • Posts: 520
on: Jun 24, 2018
A direct marketing company believes that the probability of making a sale when a call is made to an individual's home is .02. The probability of making 2 or 3 sales in a sample of 20 calls is .0593.
 
  Indicate whether the statement is true or false

Question 2

Suppose the life of a particular brand of calculator battery is approximately normally distributed with a mean of 75 hours and a standard deviation of 10 hours.
 
  What is the probability that a single battery randomly selected from the population will have a life between 70 and 80 hours?A) 0.2412
  B) 0.3830
  C) 0.1712
  D) 0.5121


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janeli1

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

TRUE

Answer to Question 2

B


Beheh

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  • Posts: 520
Reply 2 on: Jun 24, 2018
Gracias!

xoxo123

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Reply 3 on: Yesterday
:D TYSM

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