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Suppose that a certain college class contains 42 students. Of these, 23 are freshmen, 28 are history majors, and 8 are neither. A student is selected at random from the class.
(a) What is the probability that the student is both a freshman and a history major?
(b) Given that the student selected is a freshman, what is the probability that he is also a history major? Write your responses as fractions.
According to the central limit theorem, for samples of size 64 drawn from a population with μ = 800 and σ = 56, the standard deviation of the sampling distribution of sample means would equal
What do you find out when you perform the nonparametric statistics?
Biologists suspect that male wolves are more likely than females to return to an area where the population has been greatly reduced.
an electronics firm sells four models of stereo receivers three cd decks and six speaker brands.when the four types of
Eleanor rolls a numbered cube with the numbers 1 to 6 on it. What is the probability that the number she rolls will be a prime number?
according to some research males have better spatial skills than do females and according to other research females
Some Linux distributions are set up so that a root userid is not created during the installation process. In such cases, your regular password serves as the superuser password. Why would a distribution be set up in this way? What are the advantage..
out of 10 trials a receiver got four cards correct. what is her success rate? what is her expected rate of success
Assuming an approximately normal distribution of commuting times for those who work at the plant, construct and interpret the 90% and 95% confidence intervals for the mean.
consider two independent random variables xsub1 and xsub2 having same cauchy distributionfx1pi1x2 from negative
an educator claims that the drop out rate for seniors at high school in ohio is 15. last year 38 seniors from a random
to evaluate a particular metlar scale an item whose weight is known to be 16.01 ounces is weighted five times by the
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