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Suppose that the number of persons using an ATM in any given hour between 9 a.m. and 5 p.m. can be modeled by a Poisson distribution with a mean of 9. In this case, the "unit of measure" is an hour of time during the business day.
What is the probability that more than 10 persons will use the machine between 1 p.m. and 2 p.m.?
question 1 summarise the provisions and purpose of the rics valuation-professionalnbsp standards the red book and
An insurance representative wants to determine if the proportions of women and men who buy the different policy types are the same. The actual sales results for 50 women and 50 men are
In the previous example, let, instead, T be the time of the last occurrence in the time interval (0, t]. If there is no occurrence during (0, t], we set T = 0. Compute E T.
discuss a decision familiar to you that can be analyzed by using a decision tree.please answer in at least 3 sentences
A carton of 6 batteries contains 2 that are defective and 4 that are good. If we select 3 batteries at random form this carton, what is the probability that the sample contains exactly 1 defective battery?
Using the 0.01 significance level, can we conclude that there is a positive correlation between the variables?
Do the associations between the sizes of the heads and bodies of the two species appear to be strong? Explain.- In what ways are the two relationships similar? Explain.
It is estimated that 10 percent of those taking the quantitative methods portion of the CPA examination fail that section. Sixty students are taking the exam on Saturday.
Suppose that Y is a coin-tossing random variable (P(Y = 1) = P(Y = -1) = 1/2), which is independent of X. Show that XY is strictly stable.
At a certain fast-food restaurants, 51% of customers order a chicken sandwich, 46% of the customers order French fries, and 21% of customers order both a chicken sandwich and French fries. What is the probability that randomly selected customer wi..
Suppose that the random variable X has mean 10 and variance 25.- Find the mean and standard deviation of 2X.- Find the mean and standard deviation of -2X.
Calculation of the Probability of Increase in Income and Wealth and Increase in Happiness
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