Probability that present value of the investment
Suppose the present value of a risky investment is approximately normally distributed with mean $10,000 and standard deviation $4,000. What is the probability that present value of the investment is less than $1,000? Greater than $20,000?
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Discuss the effect that sample size on the width of confidence intervals.
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The diameter of a brand of ping-pong ball is approximately normally distributed, with a mean of 1.30 inches and a standard deviation of 0.04 inch. If you select a random sample of 16 ping-pong balls, (a) What is the sampling distribution of the me
A social organization for tall people has a requirement that women must be at least 70 in tall. what percentage of women meet the requirements.
What is the probability that present value of the investment is less than $1,000? Greater than $20,000?
Using the Poisson distribution, find the probability that five cars will arrive during the next fifteen-minute interval.
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What is the probability that the student answers more than 20 questions correctly? What is the probability the student answers less than? questions correctly?
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