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Let X be the damage incurred (in $) in a certain type of accident during a given year. Possible X values are 0, 1000, 5000, and 10000, with probabilities 0.84, 0.10, 0.04, and 0.02, respectively.
A cast a die a number of independent times until a multiple of 3 appears on the top side of the die. Find the probablity that more then seven casts needed to obtain the fist multiple of three?
Patrick took his sample and his average was 22.57. Now what is the probability that his sample average is more than 20? What is the probability that the true average turnaround time is greater than 20
A particle moves on 3 points situated on a circle. At each step it is equally likely to move one step clockwise or one step counterclockwise
What are the conclusions of the test if the error level is alpha=0.05? what type of error may have occurred? What are the conclusions of the test if the error level is alpha=0.01? what type of error m
Calculate the sample size needed given these factors:
An Economic Department at a state university with five faculty members-Anderson, Box, Cox, Carter, and Davis-must select two of its members to serve on a program review committee. Because the work w
If we have a uniform random variable that takes values between 7 and 10.5, the graph for the distribution would have a height of what?
A random variable X has a uniform distribution between 4 and 14. Find the probability that the random variable will take a value less than 7.8.
If their scores are normally distributed, what are the mean and standard deviation of the scores?
Find the probability using the hypergeometric distribution, then the binomial approximation, and finally the Poisson approximation.
Containers arrive at a stocking station on a conveyor at the rate of five per minute. Container weight is 25 kg. Conveyor height is 50 inches and the stocking point is 70 inches above the ground. Th
What is the probability that at least one component fails in the time interval? Given that at least one component failed, what is the probability that component A failed?
You live on Keswick Ridge and commute to campus. Suppose that you have the option of crossing the river at the dam, the Westmoreland St Bridge, or the Princess Margaret Bridge. You tend to take the
If you could persuade them to try retrieval a second time in the event of a failure, suppose that a second try would have a 0.67 probability of retrieval if the memory chips were dry and a 0.1 proba
You also choose at random a device to do your HW on, but is three times more likely to be the laptop than the iPad. If you can't remember what device you did your HW on, what is the probability that
A weather forecaster predicts that the May rainfall in a local area will be between 1 and 7 inches but has no idea where within the interval the amount will be. Let x be the amount of May rainfall i
You are given a loan on which interest is charged over a 4 year period as follows: an effective rate of discount of 6% for the first year
If it is stipulated that an equal number of men and women are to be selected (6 men from the group of 65 men and 6 women from the group of 35 women), what is the probability that Mary's name will be
In a true/false quiz there are two possible answers to each of 5 questions. A student has not studied for the quiz and must guess the answer to each question.What is the probability the student will
A fair coin is tossed 7 times. What is the probability of tossing a "head" on the 7th toss, given that the 6 preceding tosses were also "heads"?
Find the probability distribution ofX(insert a table or draw your own). Find the expected number of defective flash drives is a sample.
Use appropriate words and statistics to describe the statistical results. Based on this data which food seems to be preferred?