Probability and Statistics Multiplication Rule

• .2855
• .6246
• .0922
• .3230

The weather forecaster predicted it will be 4/5 chance of rain for Monday and 2/3 chance of rain for Tuesday. What is the probability it will rain both days?

• 1/2

• 20/15

• 8/15

• 6/8

If P(A) = 0.6 and P(B) = 0.5, what is P(A and B) if A and B are independent events?

• 0.1

• 1.1

• 0.9

• 0.3

What is the Multiplication Rule?

• P(A) ⋅ P(B|A)

• P(A) - P(B)

• P(A) ⋅ P(B)

• P(A) + P(B) - P(A ∩ B)

Mrs. Regan has a 12% chance of making a freethrow. What is the probability she shoots twice and makes both?

• 14%

• 1%

• 24%

• 5%

Explain the components of a probability model and how it is used to calculate probabilities.

• The components of a probability model include the sample space, events, and probabilities assigned to each event. It is used to calculate probabilities by using the rules of probability, such as the addition rule and multiplication rule.

• The components of a probability model include the alphabet, numbers, and colors. It is used to calculate probabilities by flipping a coin.

• The components of a probability model include the weather, sports, and politics. It is used to calculate probabilities by guessing.

• The components of a probability model include the population, GDP, and unemployment rate. It is used to calculate probabilities by using astrology.

A stack of magazines has 5 news magazines and 10 sports magazines. Two magazines are drawn at random without replacement. What is the probability of selecting a news magazine first and then a sports magazine?