Chapter Test Probability

In school lottery to win a price for "Free combo in McDonalds" it is required to select 5 numbers (in any order) out of 40 numbers.

A) In how many ways can 5 numbers be chosen?

In school lottery to win a price for "Free Domino's Pizza" it is required to select 5 numbers (in any order) out of 40 numbers.

What is the probability of winning?

Your sock drawer has 18 folded pairs of socks, with 8 pairs of white, 6 pairs of black, and 4 pairs of blue.

What is the probability, without looking in the drawer, that you will first select and remove a black pair, then select either a blue or a white pair?

A sample of automobile dealerships found that 19% of automobiles sold are silver, 22% of automobiles sold are sports utility vehicles (SUVs), and 16% of automobiles sold are silver SUVs.

What is the probability that a randomly chosen sold automobile from this sample is silver or an SUV?

A card is randomly selected from a standard deck. Find the probability that the card is red or a queen.

An eight-sided die, numbered 1–8, is rolled. Find the probability that the roll results in an even number or a number greater than 6.

A shipment of 150 television sets contains 3 defective units. Determine how many ways a vending company can buy three of these units and receive no defective units.

In a group of 150 toasters sets contains 3 defective units. Determine how many ways a vending company can buy three of these units and receive all defective units.

A cargo of 150 dishwashers contains 3 defective units. Determine how many ways a vending company can buy three of these units and receive at least one good unit.

The package of 150 keyboards contains 3 defective units. Find the probability that a vending company do not end up with any defective one.