Probability Flashcard

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 a single event?

Back

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

Front

What is the probability of selecting a specific item from a group?

Back

If there are 'n' items in total and '1' is the specific item, the probability is 1/n.

Front

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

Back

The probability of rolling a specific number (e.g., 4) is 1/6.

Front

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

Back

The probability of rolling an even number (2, 4, or 6) is 3/6 or 1/2.

Front

What are odds in probability?

Back

Odds represent the ratio of the probability of an event occurring to the probability of it not occurring.

Front

If the odds of an event happening are 3:8, what are the odds it does not happen?

Back

The odds it does not happen are 8:3.

Front

What is a spinner in probability?

Back

A spinner is a circular device divided into sections, each representing a different outcome, used to demonstrate probability.

Front

How do you find the probability of multiple independent events occurring?

Back

Multiply the probabilities of each individual event.

Front

What is the probability of spinning red, odd, and 3 on a spinner in three spins?

Back

The probability is calculated by multiplying the individual probabilities of each event.