**Question: **Refer to the sample space shown in Figure 4.3. Consider the selection of a single card from the sample space and let:

A = event an ace is selected

B = event a red face-card is selected

How many cards satisfy the event (A or B)?

## Probability: Calculating Basic Probabilities – #29553

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**Question: ** As a company manager for Claimstat Corp., there is a .40 probability that you will be promoted this year. There is a 0.72 probability that you will get a promotion, a

raise, or both. The probability of getting a promotion and a raise is 0.25.

a. If you get a promotion, what is the probability you will also get a raise?

b. What is the probability you will get a raise?

c. Are getting a raise and getting a promotion independent events? Explain using probabilities.

d. Are these two events mutually exclusive? Explain using probabilities.

**Question: ** As a company manager for Claimstat Corp., there is a .40 probability that you will be promoted this year. There is a 0.72 probability that you will get a promotion, a

raise, or both. The probability of getting a promotion and a raise is 0.25.

a. If you get a promotion, what is the probability you will also get a raise?

b. What is the probability you will get a raise?

c. Are getting a raise and getting a promotion independent events? Explain using probabilities.

d. Are these two events mutually exclusive? Explain using probabilities.