The average per capita income for residents of Pennsylvania is $32,711 with a standard deviation of $3,100. If the variable is normally distributed, find the probability that the mean income of a sample of 50 residents would be less than $33,000. Express your answer as a decimal to four decimal places. Your Answer: Answer
The average per capita income for residents of Pennsylvania is $32,711 with a standard deviation of $3,100. If the variable is normally distributed, find the probability that the mean income of a sample of 50 residents would be less than $33,000. Express your answer as a decimal to four decimal places. Your Answer: Answer
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Question
![The average per capita income for residents of Pennsylvania is $32,711 with a
standard deviation of $3,100. If the variable is normally distributed, find the
probability that the mean income of a sample of 50 residents would be less than
$33,000. Express your answer as a decimal to four decimal places.
Your Answer:
Answer
Question 7
The average laptop computer has a lifespan of 48 months with a standard deviation
of 6.8 months. Assuming the lifespan is normally distributed, find the probability
that the mean of a random selection of 30 computers will be more than 50 months.
Write your answer correct to four decimal places.
Your Answer:
Answer](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc00bbede-8910-4328-8f70-4b214086d337%2Ff5833ab6-82d8-45cd-9d7d-e69deb356f8a%2Fr9obu33_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The average per capita income for residents of Pennsylvania is $32,711 with a
standard deviation of $3,100. If the variable is normally distributed, find the
probability that the mean income of a sample of 50 residents would be less than
$33,000. Express your answer as a decimal to four decimal places.
Your Answer:
Answer
Question 7
The average laptop computer has a lifespan of 48 months with a standard deviation
of 6.8 months. Assuming the lifespan is normally distributed, find the probability
that the mean of a random selection of 30 computers will be more than 50 months.
Write your answer correct to four decimal places.
Your Answer:
Answer
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