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On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on her past experience, she has assigned the following probability distribution to the number of tubes she will rent on a randomly selected day.
x 25 50 75 100 Total
P(x) .20 .45 .28 .07 1.00
(a) Find the probability expressions: (Round your answers to 2 decimal places.)
a. P(X = 50)
b. P(X ≤ 75)
c. P(X > 50)
d. P(X < 100)
a purchaser of electrical components buys several lots where each lot comes in a bundle of 6 distinct components. it is
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Let X = number of correct guesses that Isabelle makes. What are the values of n and p for the binomial distribution that describes X?
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if a random variable can take on a countable number of values one would use a discrete
using the clues given below fill in the rest of the joint distribution. there is only one answer.y x0 3 61
Try to create a good model to describe this growth.- Use your model to estimate the number of electronic journals in the year 2000.
Is this enough evidence to support Union's position? Use significance level of a = 0.05. You may suppose the mean annual salaries are normally distributed.
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