Stats Chapter 3 Review

The access code for a warehouse’s security system consists of six digits. The first digit cannot be 0 and the last digit must be even. How many access codes are possible?

• 450,000

• 900,000

• 1,000,000

• 5,000,000

Determine whether the events are mutually exclusive. Then determine whether the events are independent or dependent. Explain your reasoning. Event A: A bowler having the highest game in a 40-game tournament Event B: Losing the bowling tournament.

• The events are mutually exclusive and independent.

• The events are mutually exclusive and dependent.

• The events are not mutually exclusive and independent.

• The events are not mutually exclusive and dependent.

From a pool of 30 candidates, the offices of president, vice president, secretary, and treasurer will be filled. In how many different ways can the offices be filled?

• 643,601

• 278,405

• 657,720

• 325,760

A shipment of 250 netbooks contains 3 defective units. Determine how many ways a vending company can buy three of these units and receive no defective units.

• 2,481,115

• 14,886,690

• 3,139,600

• 12,138,850

A shipment of 250 netbooks contains 3 defective units. Determine how many ways a vending company can buy three of these units and receive all defective units.

• 1 way

• 3 ways

• 5 ways

• 10 ways

Fifteen cyclists enter a race. How many ways can the cyclists finish first, second, and third?

• 2730

• 3360

• 3640

• 4200

Five players on a basketball team must each choose a player on the opposing team to defend. In how many ways can the players choose their defensive assignments?

• 60

• 120

• 720

• 24

A literary magazine editor must choose 4 short stories for this month’s issue from 17 submissions. In how many ways can the editor choose this month’s stories?

• 2380

• 2385

• 2390

• 2395

An employer must hire 2 people from a list of 13 applicants. In how many ways can the employer choose to hire the 2 people?

• 78

• 65

• 91

• 104

A random sample of 250 working adults found that 74% access the Internet at work, 88% access the Internet at home, and 72% access the Internet at both work and home. Find the probability that a person in this sample selected at random accesses the Internet at home or at work.

• 0.90

• 0.92

• 0.88

• 0.74