Simple Probability Events

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

What is a simple event in probability?

Back

A simple event is an event that consists of a single outcome.

Front

How do you calculate the probability of a simple event?

Back

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

Front

What is the probability of rolling a 5 on a standard six-sided die?

Back

P(5) = 1/6.

Front

If there are 15 girls and 15 boys in a class, what is the probability of selecting a girl?

Back

P(girl) = 15/30 = 1/2.

Front

What is the total number of outcomes when flipping a coin?

Back

There are 2 outcomes: heads or tails.

Front

What is the probability of drawing a letter other than 'A' from the word 'ALGEBRA'?

Back

P(not A) = 5/7.

Front

If 3 out of 30 people have gray hair, what is the probability of selecting a person with gray hair?

Back

P(gray hair) = 3/30 = 1/10.

Front

What is the probability of selecting a Yorkshire terrier from 18 dogs, 4 of which are Yorkshire terriers?

Back

P(Yorkshire terrier) = 4/18 = 2/9.

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not occur.