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1. You don`t need to simplify answers for this problem, complicated fractions are OK. Two boxes have colored balls in them. Box A has 3 blue and 7 red balls in it, box B has 1 blue and 1 red.
a) Six balls are drawn without replacement from box A. What is the chance that exactly two balls are blue or the first two balls drawn are the same color?
b) A ball is randomly selected from box A and put into box B. Then a ball is randomly selected from the three balls in box B. What is the chance that the ball put from box A into box B is blue, given that the ball drawn from box B is blue?
All welders in a factory begin as apprentices. Every year the performance of each apprentice is reviewed. Past records indicate that after each review, 10% of the apprentices are promoted to professional welder
An auto manufacturer advertises that "90% of the cars we've ever made are still on the road." Assuming this is literally true, how can it be explained?
The independent auditor's plan for an examination in accordance with generally accepted auditing standards is influenced by the possibility of material misstatements. The auditor will therefore conduct the examination with an attitude of
We monitor the number of incoming calls into a doctor's office. Let X be the number of incoming calls between the hours of l pm and 2 pm and Y be the number of calls between l pm and 3 pm.
Month is uniformly distributed between 2 and 12. Find the probability density function and the cumulative distribution function of x.
a group of researchers studied the effect of global environmental change on grazing lands. their article reported the
If HIV virus is actually present, the probability that ELIA test will give a positive result from ELISA is .01. If ELISA has given a positive result, use the Bayes' theorem to find the probability that the HIV virus is actually present.
Lakewood Fashions must decide how many lots of assorted ski wear to order for its three stores. Information on pricing, sales, and inventory costs has led to the following payoff table, in thousands.
What is the probability that a single randomly selected juror from Hidalgo County is Mexican-American? Explain briefly. What is the probability a single randomly selected juror is not Mexican-American? Explain briefly.
What will be the predicted satisfaction score for a patient with a pain relief score of 62 and what is the standard error of estimate when predicting satisfaction from knowledge of pain relief score?
find the best predicted weight of a seal if the overhead width measured from a photograph is 2.4 cm. let overhead width
The proportion of left handers is 0.10. What is the number of left handers in the sample and what notation is given to that number? What is the values of p and ^p?
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