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Six balls are to be randomly chosen from an urn containing 8 red, 10 green, and 12 blue balls.
(a) What is the probability at least one red ball is chosen?
(b) Given that no red balls are chosen, what is the conditional probability that there are exactly 2 green balls among the 6 chosen?
1 If sampling is done without replacement, the number of possible samples of size n = 5 from the above population is __________
A review of voter registration records in a small town yielded the following table of the number of males and females registered as Democrat, Republican, or some other affiliation.
Twenty percent of all cars manufactured by a certain company have a defective transmission system. If a dealer has sold 200 of these cars, what is the approximate probability that it will need to service at most 50 of them?
My son plays for the Hooks and his average is .333. Therefore I am going to assume the probability of him getting a hit is .333 for each time he bats. In a recent game he batted three times.
A particular bulb is turned on once each evening for an average of 10 hr. If it is desired to have a reliability of 90 percent, what is its design life in days?
An employee is to be selected randomly from this population. Let A be the event that the employee scores a passing grade on the exam and let M be the event that a male is selected. Are the events A and M independent
studies indicate that the price elasticity of demand for potato chips is about 1.0 if a bag of potato chips currently
To construct a p-chart for a manufacturing process, 25 samples of size 200 were drawn from the process. The number of defectives in each sample is listed below
A parent is deciding which babysitter to use in the neighborhood. Babysitter A charges $20 per hour and a base rate of $60 per day. Babysitter B charges a base rate of $50 per day and $25 per hour.
Assume that a lot from product 5% non-conforming is submitted. Using Poisson Distribution compute the approximate probabilities that: the lot will be accepted and still in a reduced inspection.
Would that daily sales figure be considered a potential outlier? why or why not? e) Find the probability that sales on a randomly selected day are at most $3445.
a small business just leased a new computer and color laser printer for three years. the service contract for the
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