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July 17, 2022

Describe the key features of the normal curve and explain why the normal curve in real-life distributions never matches the model perfectly.? Provide two?examples of why this is

  For this discussion: Describe the key features of the normal curve and explain why the normal curve in real-life distributions never matches the model perfectly.  Provide two examples of why this is especially true in medical statistics. Be sure to respond to at least one of your classmates’ posts. Cite […]
June 3, 2022

Let X be a continuous random variable such that ????(????) =1, ????or ???? 0<????0.5) * ????(0.5<??

Let X be a continuous random variable such that ????(????) =1, ????or ???? 0<????<1. Find the following probabilities: * ????(????>0.5) * ????(0.5<????<0.8)
March 30, 2022

The average teachers’ salary in a certain state

The average teachers' salary in a certain state is  $57,337 . Suppose that the distribution of salaries is normal with a standard deviation of  $7500 . Assume that the sample is taken from a large population and the correction factor can be ignored. Use a TI-83 Plus/TI-84 Plus calculator and […]
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