Math 7 - Probability Test Review

A die was rolled 40 times. The results of each roll is given in the table below. Based on the theoretical probability, if a die is rolled 120 times, how many times can someone expect to roll an even number?

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(both yellow) as a simplified fraction.

The spinner below is spun twice. Find P(both stars) as a simplified fraction.

The spinner below was spun 50 times. The results of each spin are shown in the table below. If you were to spin the spinner 300 times, how many times would you expect the spinner to land on yellow based on the experiment?

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 blue) as a simplfied fraction.

What is the probability of randomly selecting a square that is unshaded and odd? Express the probability as a simplifed fraction, decimal and percent.

The spinner below was spun 50 times. The results of each spin are shown in the table below. What is the theoretical probability of spinning red or purple?

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

A pencil box contains 5 red, 12 blue, 10 green, and 3 yellow markers. If a marker is chosen at random, what is the probability that it is not yellow? Express the answer as a fraction in simplest form and a percent.

A die was rolled 40 times. The results of each roll is given in the table below. What is the theoretical probability of rolling a 2 or 3?

The spinner below was spun 50 times. The results of each spin are shown in the table below. What is the experimental probability of spinning red or purple?

A die was rolled 40 times. The results of each roll is given in the table below. What is the experimental probability of roling a 2 or 3?

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

How many possible outcomes are there when spinning the spinner to the left three times?

If the spinner below is spun, then a letter from the word BINGO is chosen at random, find P(less than 7, then B) as a fraction in simplest form.

The probability that it will rain tomorrow is 11/15. What is the probability that it will not rain?

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.

Arjun 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 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.

A die was rolled 40 times. The results of each roll is given in the table below. Based on the experimenta; probability, if a die is rolled 120 times, how many times can someone expect to roll an even number?

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

If the spinner below is spun, then a letter from the word BINGO is chosen at random, find P(at least 3, then a vowel) as a simplifed fraction.

The spinner below is spun twice. Find P(shaded, then heart) as a simplified fraction.

Find the total number of outcomes that are possible: Selecting a letter from the word TROPHY and a day from the month of May.