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An introductory probability course has 100 students who can be divided by gender and soft drinkpreference (Brand A, Brand B, or other) as described in the following contingency table.Brand A (A) Brand B (B) Other (O) TotalMale (M) 12 23 3 38Female (F) 37 19 6 62Total 49 42 9 100Suppose that one of the students in this course is selected at random. What is the probability that the student(a) is female? That is, what is P(F)?(b) prefers Brand B? That is, what is P(B)?(c) is female and prefers Brand B? That is, what is P(F ∩ B)?
find the minimum shape size n needed to estimate mu find the given values of c s and ec0.98 s9.7 e1assume that the
At the .01 significance level, is there a relationship between job pressure and age?
Consider the change-counting program of section 1.2.2. It would be nice to be able to easily change the currency used by the program, so that we could compute the number of ways to change a British pound, for example.
How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 0.04 with 98% confidence?
What arguments can be advanced in favor of treating fixed manufacturing overhead costs as product costs? What arguments can be advanced in favor of treating fixed manufacturing overhead costs as period costs?
If a study had a result of F (2, 147)= 4.56, p = 0.003, how many groups were in the study, and what was the sample size?
a new extended-life light bulb has an average service life of 770 hours with a standard deviation of 51 hours. if the
q1.acid rain has caused many lakes to become more acidic. a lake is considered nonacidic if the ph level is greater
Let X be N(O, 1/0). Assume that the unknown O is a value of a random variable 0 which has a gamma distribution with parameters IX = r/2 and fJ = 2/r, where r is a positive integer. Show that X has a marginal I-distribution with r degrees of freed..
A number of tubes of toothpaste purchased by a typical family is a random variable having a Poisson distribution with an average of 1,8 tubes per month
black bears ursus americanus have a tendency to wander for food and they have a high level of curiosity. these
We forecast that 20% of group 1 and 30% of group 2 will experience outcome. If we recruit the equal number of individuals in each of the groups, how many individuals do we need to study?
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