Unit 8 Probability

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

What is the formula for calculating Probability?

Back

Probability (P) = 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 probability of rolling a 3 on a standard six-sided die?

Back

P(rolling a 3) = 1/6.

Front

If a box contains 3 red balls and 2 green balls, what is the probability of picking a green ball?

Back

P(picking a green ball) = 2/5.

Front

What is the probability of getting heads when flipping a fair coin?

Back

P(getting heads) = 1/2.

Front

What does it mean if two events are independent?

Back

Two events are independent if the occurrence of one does not affect the occurrence of the other.

Front

What is the probability of drawing an Ace from a standard deck of cards?

Back

P(drawing an Ace) = 4/52 = 1/13.

Front

What is the probability of rolling an even number on a six-sided die?

Back

P(rolling an even number) = 3/6 = 1/2.

Front

What is the probability of picking a red ball from a box containing 4 red and 6 blue balls?

Back

P(picking a red ball) = 4/10 = 2/5.