Example questions from probability unit
A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an ace of a black card.

The table lists the smoking habits of a group of college students.

If a student is chosen at random, find the probability of getting someone who is a man or a non-smoker. Round you answer to three decimal places.

Use the frequency distribution to the right, which shows the number of voters (in millions) according to age, to find the probability that a voter chosen at random is in the given age range.

The probability is..

Qn6. You are planning a three-day trip to Seattle, Washington, in October. Use the fact that on each day, it could either be sunny or rainy, and that each day is equally likely to be sunny of rainy to answer the following question.
What is the probability that it rains on at least one day?