2022 Week 18 Probability

The Bargain Auto Mall has these cars in stock.  If a car is selected at random, find the probability that it is Domestic or an SUV.

• 210/300 = .7

• 85/300 = .28

• 295/300 = .98

• 230/300 = .76

The Bargain Auto Mall has these cars in stock.  If a car is selected at random, find the probability that it is Foreign and mid-sized.

• 20/300 = .06

• 135/300 = .45

• 155/300 = .516

• 40/300 = .13

A recent study of 200 nurses found that of 125 female nurses, 56 had bachelor's degrees:  and of 75 male nurses, 34 had bachelor's degrees.  If a nurse is selected at random, find the probability that the nurse selected is a male nurse with a bachelor's degree.

• .28

• .17

• .375

• .625

At a community swimming pool there are 2 managers, 8 lifeguards, 3 concession stand clerks, and 2 maintenance people.  If a person is selected at random, find the probability that the person is either a lifeguard or a manager.

• .67

• .53

• .13

• not enough information

P(not A) =

*Remember to simplify.*

• .33

• .75

• .25

• .82

An unlikely chance event is close to what number?

• 0
• 1
• -1

• 100

An equally likely chance for an event to occur is what number?

• 0

• 1

• .5

• 100

Twenty-five people were asked which of the four gifts was their favorite.  Which gift was favored 16% of the time?

• Flowers
• Perfume
• Jewelry
• Clothing

What notation does the shaded region represent

What statement does the shaded region represent?