Probability Review

Front

What is the probability of an event not occurring?

Back

P(not A) = 1 - P(A). For example, if P(A) = 1/4, then P(not A) = 3/4.

Front

What is Theoretical Probability?

Back

Theoretical Probability is what should happen in an ideal situation, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

How do you calculate the probability of NOT landing on a specific color in a spinner?

Back

To find the probability of NOT landing on yellow, subtract the probability of landing on yellow from 1. If P(yellow) = 1/8, then P(not yellow) = 7/8.

Front

What is the difference between dependent and independent events?

Back

Independent events are not affected by each other. For example, flipping a coin and rolling a die are independent events.

Front

How do you find the probability of picking a specific item from a group?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes). For example, if a bag has 5 quarters, 2 dimes, and 4 pennies, the probability of picking a quarter is 5/11.

Front

What is the formula for calculating probability?

Back

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

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 an example of a dependent event?

Back

Drawing cards from a deck without replacement is an example of dependent events, as the outcome of the first draw affects the second.

Front

What is the probability of rolling a 3 on a fair six-sided die?

Back

The probability of rolling a 3 is 1/6, since there is one favorable outcome and six possible outcomes.

Front

If a spinner has 8 equal sections, what is the probability of landing on any one section?

Back

The probability of landing on any one section is 1/8.