Probability, Sample Space

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).

Front

What is a sample space?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

If you roll a die, what are the possible outcomes?

Back

The possible outcomes are 1, 2, 3, 4, 5, and 6.

Front

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

Back

The probability is 3/6 or 1/2, since the even numbers are 2, 4, and 6.

Front

What does 'equally likely' mean in probability?

Back

'Equally likely' means that all outcomes have the same chance of occurring.

Front

How do you calculate the total number of outcomes when flipping coins?

Back

Use the formula 2^n, where n is the number of coins. For example, 2^4 = 16 outcomes for 4 coins.

Front

What is the fundamental counting principle?

Back

The fundamental counting principle states that if one event can occur in m ways and a second can occur independently in n ways, then the two events can occur in m x n ways.

Front

If you have 3 shirts and 2 pairs of pants, how many outfits can you make?

Back

You can make 3 x 2 = 6 outfits.

Front

What is the probability of drawing a red card from a standard deck of cards?

Back

The probability is 26/52 or 1/2, since there are 26 red cards.

Front

What does 'impossible' mean in terms of probability?

Back

'Impossible' means that the event cannot happen, with a probability of 0.