Probability of Overlapping Events

Which of the following shows how to determine P(football or basketball)?

• 20/100 + 55/100 - 5/100

• 55/100 + 5/100 - 20/100

• 55/100 + 20/100 + 5/100

• 75/100 + 25/100 - 20/100

Which of the following shows how to determine P(diamond or face card)?

• 13/52 + 12/52 - 3/52

• 3/52 + 13/52 -12/52

• 3/52 + 12/52 - 13/52

• 1/13 + 3/52 - 1/4

Which of the following shows how to determine P(odd number or shaded number)?

• 4/8 + 3/8 - 1/8

• 3/8 + 6/8 - 4/8

• 4/8 - 5/8 + 3/8

• 4/8 + 4/8 - 4/8

A survey found that 19% of the population owned dogs, 14% owned cats, and 6% of the population owned both a cat and a dog? Find the probability that a person owns a cat or a dog.

• 0.19 + 0.14 + 0.06

• 19/100 + 14/100 - 6/100

• 0.06 + 0.14 - 0.19

• 19/100 + 6/100 -14/100

Which of the following shows how to determine when a die is rolled P(multiple of 2 or a multiple of 3)?

• 2/6 + 1/6 - 3/6

• 4/6 + 2/6 - 1/6

• 3/6 + 2/6 - 1/6

• 5/6 + 1/6 - 3/6

Find the probability of choosing a student at random that plays an instrument OR a sport.

• 2/5

• 13/20

• 11/20

• 4/5

Determine if the events are mutually exclusive or overlapping: Drawing a red or an ace from a deck of cards

• Mutually exclusive

• Overlapping

Find P(diamond or face card)?

• 11/26

• 25/52

• 3/52

• 21/52

• .2855

• .6246

• .0922

• .3230

P(Pizza|Senior):

• 1/2

• 4/5

• 2/3

• 1/5