Probability Stats

If possible, please assist me with the formula and finding the answer please!   In a simple game, a six-sided die is rolled 4 times. If all four rolls result in either 1 or 2, then the player... more

For this problem, assume that you are to pick 3 cars from the motor pool, which contains 8 subcompact cars, 8 compact cars, and 5 midsize cars.

involving the casting of a play in a community theater. Assume that there are 8 unfilled roles: 3 male and 5 female. There are 6 men and 9 women, including Sally, auditioning for a part in the play.

Assume that X = { A, D, E} and Y = { 7, 4, 6, 2}. A code consists of 2 different symbols selected from X followed by 2 not necessarily different symbols from Y.

involving the outfitting of a camping trip. Assume that the camper has 5 jackets, 5 sleeping bags, and 11 different packages of food. An outfit consists of 1 jacket, 2 sleeping bags, and 8 packets of

Mrs. Jones surveys her class about their siblings. In the class, 75% of the students have a brother, 82% have a sister, and 65% have both a brother and a sister. What is the probability that a... more

the chairperson who must select a subcommittee but assume that the committee consists of 13 people including the chairperson and that the chairperson must select a committee of 3 people from the... more

(1) C(6,3) = (2) C(7,3) = (3) C(9,5) = (4) C(8,2)· C(8,6) =

Suppose we have three mutually exclusive events A, B, and C such that P(A) = .4, P(B) = .4, and P(C) = .2. Also, for some event X, P(X|A) = .75, P(X|B) = .5, and P(X|C) = .5. Find P(A|X), P(B|X),... more

according to research study, 66% of preschool children living in povery have been exposed to cigarette smoke at home. In comparison, 44% of preschool children not in poverty have been exposed to... more

In a week before and the week after a holiday, there were 10,000 total deaths and 4965 of them occured in the week before the holiday ... construct a 95% confidence interval estimate of the... more

Suppose that Body Mass Index (BMI) for a population of 30-60-year-old men follows a Normal distribution with mean 26, and standard deviation 4.   From a random sample of 7 men aged 30-60 years... more

An investor is unsure whether interest rates will increase (I), remain the same (S), or decrease (D) by mid-summer. Based on his own experience, he attaches the following probabilities to these... more