Determining area under normal curve, Basic Statistics

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Determining area under normal curve

1. Find out the value of z such that 45% of the distribution lies between it and mean.

2. Suppose that the average annual salary for the worker in the United States is $31,000 and that annual salaries for Americans are normally distributed with the standard deviation equal to $7,500. Find out the following:

a) What percentage of the Americans earn below $20,000?

b) What percentage of the Americans earn above $45,000?

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Basic Statistics: Determining area under normal curve

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Basic Statistics: Determining area under normal curve

Reference No:- TGS021167

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Ask an Expert for Answer!!

Basic Statistics: Determining area under normal curve

Reference No:- TGS021167

Recent Questions Asked Basic Statistics

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Q : Recommendation to management

Q : Approximating standard deviation based on z score

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