Probability Jeopardy

Simple Probabilities

100

1/6

What is the probability of rolling a 2 when a fair die is rolled once?

200

1/2

What is the probability of rolling an even number when a fair die is rolled once?

300

4/52 = 1/13

What is the probability that a card drawn at random from a deck of cards will be an ace?

400

4/36 = 1/9

What is the probability that when a pair of six-sided dice are thrown, the sum of the numbers equal 5?

500

13/32 = .40625 1,10,11,12,13,14,15,16,17,18,19,21,31

A book contains 32 pages numbered 1-32. If a student randomly opens the book, what is the probability that the page number contains digit 1?

Find the Probability

100

P(5)+P(king) 4/52+4/52= 8/52 or .154

When a single card is drawn from a standard deck of cards, what is the probability of getting a 5 or a king?

200

P(2)+P(R)-P(2 and R) 4/52+26/52-2/52= 28/52 or .538

When a single card is drawn from a standard deck of cards, what is the probability of getting a 2 or a red card?

300

P(I)+P(A)-P(I and A) .75+.25-.16 = .84

The probability that a person owns a IPhone is 0.75, that a person owns a Android is .25 and that a person owns both a IPhone and a Android is 0.16. Find the probability that a person owns either a IPhone OR a Android.