Probability - Theoretical Review 2

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

How do you calculate the probability of an event?

Back

Probability of an event = (Number of favorable outcomes) / (Total number of outcomes).

Front

What is a favorable outcome in probability?

Back

A favorable outcome is an outcome that satisfies the condition of the event we are interested in.

Front

What is the total number of marbles in a bag with 8 red, 6 blue, and 4 yellow marbles?

Back

Total marbles = 8 (red) + 6 (blue) + 4 (yellow) = 18 marbles.

Front

What is the probability of picking a yellow marble from a bag with 8 red, 6 blue, and 4 yellow marbles?

Back

Probability of yellow marble = 4 (yellow) / 18 (total) = 2/9.

Front

What is the probability of picking a blue marble from a bag with 8 red, 6 blue, and 4 yellow marbles?

Back

Probability of blue marble = 6 (blue) / 18 (total) = 1/3.

Front

What is the probability of picking a red marble from a bag with 8 red, 6 blue, and 4 yellow marbles?

Back

Probability of red marble = 8 (red) / 18 (total) = 4/9.

Front

How many possible outcomes are there when spinning a 4-section spinner and a 5-section spinner?

Back

Total outcomes = 4 (sections on first spinner) * 5 (sections on second spinner) = 20 outcomes.

Front

What is the decimal equivalent of the probability 1/3?

Back

Decimal equivalent of 1/3 is approximately 0.33.

Front

What does it mean if the probability of an event is 0?

Back

A probability of 0 means that the event cannot occur.