Stats: Review Chapter 7 - Probability Rules

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

What is a Venn diagram used for in probability?

Back

A Venn diagram is used to visually represent the relationships between different sets, including their intersections and unions.

Front

What does it mean for two events to be mutually exclusive?

Back

Two events are mutually exclusive if they cannot occur at the same time.

Front

How do you calculate the probability of an event?

Back

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

Front

What is the probability of rolling a sum of 5 with two six-sided dice?

Back

The probability is 0.111 or 1/9.

Front

What is the probability of rolling a number greater than 4 with two six-sided dice?

Back

The probability is 0.694 or 25/36.

Front

How many outcomes are there when rolling two six-sided dice?

Back

There are 36 possible outcomes when rolling two six-sided dice (6 sides on the first die x 6 sides on the second die).

Front

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

Back

The probability is 0.077 or 1/13.

Front

What is a two-way table in statistics?

Back

A two-way table is a table that displays the frequency distribution of two categorical variables.

Front

What does it mean for events to be independent?

Back

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