Unit 3 Review

Front

What is the definition of 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

The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Front

What is the probability that a student does not play on a sports team if the probability that they do play is 0.5?

Back

The probability that a student does not play on a sports team is also 0.5.

Front

What does the union of two sets (A ∪ B) represent?

Back

The union of two sets A and B represents a set that contains all elements that are in A, in B, or in both.

Front

How do you find the union of two sets?

Back

To find the union of two sets, combine all unique elements from both sets.

Front

In a standard deck of cards, how many black cards are there?

Back

There are 26 black cards in a standard deck of 52 cards (13 spades and 13 clubs).

Front

What is the probability of drawing an eight from a standard deck of cards given that the card is black?

Back

The probability is 1/13, since there is 1 eight of spades and 1 eight of clubs out of 26 black cards.

Front

How do you calculate the total number of combinations in a menu with multiple choices?

Back

Multiply the number of choices for each category together.

Front

If a menu has 6 sandwiches, 3 types of chips, and 5 beverages, how many different lunch combinations can be ordered?

Back

The total number of combinations is 6 * 3 * 5 = 90.

Front

What is the probability of flipping a tails and rolling a 4 with a coin and a die?

Back

The probability is 1/12, calculated as P(Tails) = 1/2 and P(4) = 1/6, so (1/2) * (1/6) = 1/12.