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1. List all the samples from {a, b, c, d, e} when (a) 2 out of 5 are selected, (b) 3 out of 5 are selected. Count the number of samples in each case.
2. Out of 12 people applying for an assembly iob, 3 cannot do the work. Suppose two persons will be hired.
(a) How many distinct pairs are possible?
(b) In how many of the pairs will 0 or 1 people not be-able to do the work?
(c) If two persons are chosen in a random manner, what is the probability that neither will be able to do the job?
the claim size for a certain insurance policy is a pareto random variable with density function . the parameter is
Which of the following would be an appropriate alternative hypothesis?
What is the maximum likelihood estimate of theta? d. What is an approximate standard error of the maximum likelihood estimate?
Find the probability that among the next 5 thefts cases reported in this district. Exactly 2 resulted from the need for money to buy drugs.
sports fans tune to a local sports talk radio station according to a poisson process with the rate of three fans every
The number of sit-ups that a person can do in one minute, both before and after a physical fitness course was recorded. The data is shown below for 10 randomly selected participants.
For one of the first statistics exam, the coefficient of determination between hours studied and the grade earned was 80 percent. The standard error of estimate was 10.
a study reports the results of a regression analysis based on n15 observations in which x filter application
In the publication Employment and Earnings, information on the ages of people in the civilian labor force was published. Seventy-five people in the civilian labor force are randomly selected.
He continues this until he draws a number that is less than the comparison value, at which point he continues his interrogation. If he draws a 3 as the comparison value, what is the expected number of lashes you will receive for that question?
A circus clown at the top of a 60-foot platform is playing catch with another clown on the ground. The clown on the platform drops a ball at the same time as the one on the ground tosses a ball upward at 80 ft/sec.
The average monthly gasoline purchase for a family with 2 cars is 90 gallons. Find the probability that the family's monthly gasoline purchases will be between 86 and 96 gallons.
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