Probability Concepts and Problems

Front

What is the probability of getting at least one head when flipping a coin twice?

Back

3/4

Front

In a deck of 52 cards, what is the probability of drawing a heart or a king?

Back

16/52

Front

If P(A) = 0.3 and P(B) = 0.4, and events A and B are mutually exclusive, what is P(A or B)?

Back

0.7

Front

What is the probability that both chosen ice cream cones are chocolate if there are 7 chocolate and 8 vanilla cones?

Back

0.2

Front

In a survey of 200 people, if 80 like tea, 50 like coffee, and 30 like both, what is the probability they like coffee given they like tea?

Back

0.375

Front

Define 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 mutually exclusive event?

Back

Mutually exclusive events are events that cannot occur at the same time.

Front

What is the formula for calculating the probability of the union of two mutually exclusive events?

Back

P(A or B) = P(A) + P(B) for mutually exclusive events.

Front

What is the probability of an event that is certain to happen?

Back

1 (or 100%).

Front

What is the probability of an event that is impossible?

Back

0 (or 0%).