An understudy board of trustees involves 15 understudies.

(a)

According to various perspectives can a board of seven be looked over the investment of the chamber?

(b)

Two chamber people reliably request serving on boards together. In case they can't serve together, they won't serve in any way shape or form. What number of ways can a leading group of seven be browsed the social occasion enlistment?

(c)

Expect the chamber contains eight men and seven women. What number of sheets of six contain three men and three women?

A TV game show has 14 entrances, of which the confident should pick 3. Behind 3 of the entrances are expensive vehicles, and behind the other 11 entrances are accidental honors. The contender will keep the things behind the 3 entrances she picks. Choose the probability that the challenger prevails in any event one vehicle.

The probability is ______. (entire number or a simplified part.)

- F- -

Jane and Sam work in a comparative office for a tremendous association. They are intrigued about the degree of their associates who have adolescents.

Jane procures an overview of the huge number of workers in the workplace, self-assertively picks 20 names from the once-over, and asks with regards to whether they have children. She finds that 72% of those contemplated have children.

Sam holds up in the parlor one morning and asks the underlying 20 partners that pass by if they have children. He finds that 85% of those investigated have children.

Which result is the better measure of the degree of colleagues who have adolescents?

Question 1 decisions:

72%

The two results are correspondingly satisfactory assessments

Neither one of the outcomes is a fair measure

85%

Two balls are picked unpredictably from a urn that contains four white balls and eight red balls. Permit the unpredictable variable X to mean the amount of white balls drawn events the amount of red balls drawn. Find the probability transport. (Solicitation your answers from tiniest to greatest x-regard. Round your reactions to four decimal spots.)

Sporadic variable, x

P(X = x)