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1. Lisa shoots at a target. The probability of a hit in each shot is 1/2. Given a hit, the probability of a bull's-eye is p. She shoots until she misses the target. Let X be the total number of bull's-eyes Lisa has obtained when she has finished shooting; find its distribution.
2. Karin has an unfair coin; the probability of heads is p (0 p 1). She tosses the coin until she obtains heads. She then tosses a fair coin as many times as she tossed the unfair one. For every head she has obtained with the fair coin she finally throws a symmetric die. Determine the expected number and variance of the total number of dots Karin obtains by this procedure.
What is the Pearson correlation coefficient and how strong is the relationship - How much of the variance in the relation between these two variables is unaccounted for?
now the group is 4500 people and 1000 of them are left-handed. as before eight of them are selected and x - the number
assume that team a beats team b in 75 of the nba games they play against each other they play normal nba games i.e. 4
The dataset Length.jmp contains a simple random sample of 50 stainless steel sheet metal screw from Crown Bolt
People arrive at a restaurant at a rate of five per minute and wait to receive their order for an average of 5 mins. Customers eat in with a probability of 0.5 and carry out with a probability of 0.5.
in a study of pregnant women and their ability to correctly predict the sex of their baby 56 of the pregnant women had
Describe the following correlation. The students with the highest grades in written French were also the students with the highest grade in spoken French.
the number of chocolate chips in an 18-ounce bag of chocolate chip cookies is normally distributed with a mean of 1250
Suppose that 30 percent of computer owners use a Macintosh, 50 percent use Windows, and 20 percent use Linux. Suppose that 65 percent of the Mac users have succumbed to a computer virus, 82 percent of the Windows users get the virus, and 50 ..
let t be an exponential random variable for the failure of the screen for a television set with a mean time to failure
The jailer refuses to answer this question, pointing out that if A knew which of his fellow prisoners were to be set free, then his own probability of being executed would rise from 1/3 to 1/2 because he would then be one of two prisoners - W..
Recall that in Exercise 45 the personnel director for Electronics Associates developed the following estimated regression equation relating an employee's score on a job satisfaction test to length of service and wage rate.
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