Name ____________________________ PROBABILITY REVIEW

Name ____________________________ The cafeteria has decided to have pizza day. You can have an individual size, small, medium or large. You can also choose from cheese, pepperoni, mushroom, feta cheese and blueberry. How many choices do you have for pizza?

Name ____________________________ Mrs. Campbell has lots of things in her bookbag. You can find a red, yellow, and brown M&M and a pink, red and clear lipstick. What is the sample space for the items in her bag? What is the probability that she will select a red M&M and a clear lipstick when she reaches in?

Name ____________________________ Which of these are independent events? You draw a card from a deck of cards and then toss a coin You draw a card from a deck of cards, keep it and then draw another card You roll a die and then flip a coin You draw a blue marble from a fishbowl, keep it, then draw a red marble You grab a carrot stick from the bowl of veggies, eat it and then grab a celery stick You draw a card from a deck of cards, replace it and then draw another card

Name ____________________________ What is the difference between experimental and theoretical probability????

Name ____________________________ P (purple) P (green, red) P (blue, blue)

Name ____________________________ Five cards, 2 blue and 3 purple, are placed in a box. A card is chosen at random, put back in the box, and another is selected. Find each probability. P (blue, then blue) P (blue, then purple)

Name ____________________________ A card is chosen at random from the same box. (Five cards, 2 blue and 3 purple). It is not replaced, and then another card is drawn. Find each probability. P (blue, then blue) P (blue, then purple) P (purple, then purple)

Name ____________________________ You are buying a chain necklace. You may buy gold or silver, each of which come in a herringbone or a box-link chain. You may buy a 12”, 18”, 20” or 24” length. How many chain necklaces do you have to choose from?

Name ____________________________ Grandma Hannah always keeps her money in a sugar bowl. The bowl contains one $100 bill, three $20 bills, four $10 bills, and two $5 bills. Hannah reaches into the bowl and removes two bills at random, one right after the other. Are the two events dependent or independent? What is the probability that both bills that Grandma drew are $20 bills? What is the probability that the two bills total $10? What is the probability that the two bills total $120? If Grandma removes three bills one after the other, what is the probability that they are all $10 bills?

Name ____________________________ The diagram below shows the results of a random survey of 105 people in a small town. Each person was asked whether he or she heard the latest hit song on TV only, on the radio only, or on both TV and radio. How many people said they heard the song on TV? How many said that they heard the song on TV only? How many said they heard the song on the radio only? How many said they heard it on neither? 15 50 10 30 Radio TV