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Section 6.1-1.pdf - Section 6.1 The Standard Normal...

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Section 6.1The Standard Normal DistributionThis section presents thestandard normal distributionwhich has three properties:1. Its graph is bell-shaped.2. Its mean is equal to 0 (μ= 0).3. Its standard deviation is equal to 1 (σ= 1).The total area under its density curve is equal to 1.ExampleBone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Assume that arandomly selected subject is given a bone density test.Find the probability that the test score isa.Between 1.45 and 2.18
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