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The random variable x is greater than or equal to 50, with a mean of 70,...

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Basic Math

The random variable x is greater than or equal to 50, with amean of 70, and a variance of 36. What is the probability for xless than or equal to 50? What is the probability for x between 80and 60?

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The salary of employees is normally distributed with mean of$50,000 annually. Standard deviation of $10,000. What percentage ofthe employees make between $45,000-$60,000?

Answer & Explanation Solved by verified expert
4.4 Ratings (602 Votes)
SolutionGiven thatmean 70Vraince 2 36standard deviation 6A p x50 1 p x50 1 p x 50 70 6 1 p z 20 6 1 p z 333    See Answer
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