Simple Probability

Front

What is probability?

Back

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

Front

What is a standard deck of playing cards?

Back

A standard deck of playing cards consists of 52 cards, divided into four suits: hearts, diamonds, clubs, and spades.

Front

How many black cards are in a standard deck of playing cards?

Back

There are 26 black cards in a standard deck: 13 clubs and 13 spades.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is the probability of rolling a 3 on a 6-sided die?

Back

The probability is 1/6.

Front

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

Back

The probability is 1/2, as there are 26 red cards (hearts and diamonds).

Front

What is the formula for calculating probability?

Back

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

Front

What is the probability of selecting a green M&M from a bowl with 20 M&Ms?

Back

If there are 3 green M&Ms, the probability is 3/20.

Front

What does it mean for two events to be equally likely?

Back

Two events are equally likely if they have the same probability of occurring.

Front

What is the probability of spinning an even number on a spinner divided into 6 equal sections numbered 1 to 6?

Back

The probability is 1/2, as there are 3 even numbers (2, 4, 6).