Math 7 Probability Review

How many different outfits can be created from eight pairs of pants, five shirts, and four ties, if each outfit consists of one pair of pants,one shirt, and one tie?

A spinner with 4 equal-size sections marked M, A, T, and H is spun 100 times. The results are shown below. Based on this experiment, if the spinner is spun 250 times, how many times would you expect it to land on T or H? Round if necessary.

Patrick is studying abroad for a semester. He can choose the first semester or second semester, then choose France, Spain, Germany, Italy, or Japan. Find the total number of outcomes that are possible.

A letter from the word SAPPHIRE is selected at random 75 times. The results from the experiment are shown in the table.

Based on the experiment, if you were to spin the spinner above 200 times, how many times could you expect it to land on an unshaded section?

A letter in the grid below is chosen at random. What is the probability that the letter is shaded and a vowel (A,E,I,O,U)? Express the probability as a simplified fraction, decimal and percent.

A spinner with four equal-size sections marked M, A, T, and H is spun 100 times. The results are shown below. What is the experimental probability of spinning an A?

A card is chosen at random from a standard deck. Find P(queen or 5) as a fraction (in simplest form), decimal, and percent.

The spinner below is spun twice. Find P(shaded, then a vowel). Write your answer as a simplifed fraction.

The spinner below is spun once. Which event is most likely to occur?

Each spinner below is spun once. Find the probability of spinning a number greater than 2, then a square.

A spinner with four equal-size sections marked M, A, T, and H is spun 100 times. The results are shown below. What is the theoretical probability of spinning an A?

A pencil box contains 5 red, 12 blue, 10 green, and 3 yellow markers. If a marker is chosen at random, replaced, and then another marker is chosen, find P(green, then blue) as a simplified fraction.

Credit cards place a three ­digit security code on the back of cards. How many codes are possible?

Theoretically, if you were to spin the spinner above 200 times, how many times could you expect it to land on an unshaded section?

Use the fundamental counting principle to determine the total number of outcomes: spinning the spinner twice.

A month is chosen at random, then a standard die is rolled. What is the probability of getting February, then a number less than 5? Write your answer as a simplified fraction.

A bag contains 4 cherry, 8 orange, 6 strawberry and 10 lemon gummy bears. A gummy bear is chosen at random, eaten, then another is chosen. Find the probability of selecting a lemon, eating it, then selecting a cherry.

A box contains 8 apple, 10 fruit punch, 10 grape, and 12 berry juice boxes. A juice box is chosen at random. Find the probability of selecting an apple or a grape juice box. Express your answer as a simplified fraction, decimal and percent.

A bag contains 3 blue marbles, 10 green marbles, 4 yellow marbles, and 8 red marbles. A marble is chosen at random, not replaced, then another marble is chosen. Find P(red, then red) as a simplfied fraction.

If Sarah picks one card at random from a standard deck and then chooses one letter from the alphabet, how many outcomes are possible?

A sheet of stickers contains 15 purple, 9 red, 12 yellow, and 4 green stickers. A sticker is chosen at random, placed on a paper, then another sticker is chosen. Find P(red, then yellow).

The spinner above is spun 60 times. The results are given in the table below. What is the theoretical probability of spinning an even number? What is the experimental probability of spinning an even number? Compare to theoretical.

The spinner above is spun 60 times. The results are given in the table below. What is the theoretical probability of spinning a shaded number? What is the experimental probability of spinning a shaded number? Compare to the theoretical.

A smoothie comes in three sizes- small, medium, and large, and five flavors- strawberry, banana, orange, blueberry, and watermelon. You can add protein or no protein. How many outcomes are there?

A bag contains 3 basketballs, 10 baseballs, 7 golf balls, and 5 footballs. A ball is chosen at random, not replaced, then another is chosen. Find P(a football, then a baseball) as a simplified fraction.

A jar contains 5 blue marbles, 8 red marbles, 4 white marbles and 3 purple marbles. Suppose you pick a marble at random without looking. Find the probability the marble you select is red or white. Simplified fraction & percent answer!