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Understanding Basic Statistics

8th Edition
Charles Henry Brase + 1 other
ISBN: 9781337558075

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Chapter
Section
BuyFindarrow_forward

Understanding Basic Statistics

8th Edition
Charles Henry Brase + 1 other
ISBN: 9781337558075
Textbook Problem

Basic Computation: Finding Probabilities In Problems 31-50, let z be a random variable with a standard normal distribution. Find the indicated probability, and shade the corresponding area under the standard normal curve.

P ( z 1.20 )

To determine

To find: The probability P(z1.20) and shade the corresponding area under the standard normal curve.

Explanation

Calculation:

P(z1.20)= (Area to the left of 1.20)

Using Table 3 from the Appendix to find the specified area:

P(z1.20)=0.8849

Graph:

To draw the required graphs using the Minitab, follow the below instructions:

Step 1: Go to the Minitab software.

Step 2: Go to Graph > Probability distribution plot > View probability

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