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# Probability Concepts in Math Chapter Exam

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

### Page 1

#### Question 1 1. What is the name for all the members of a specified group?

#### Question 2 2. What is a part of a population used to describe the whole group?

#### Question 3 3. Bag A contains 6 green marbles and 4 white marbles. Bag B contains 3 green marbles and 7 white marbles. Let's combine the number of marbles from Bag A and Bag B (20) with those from Bag C, which holds 9 green and 1 white marble, for a total of 10 marbles. If you're blindfolded and select a white marble from one bag, what is the probability that it came from Bag C?

#### Question 4 4. What does the vertical line (|) in probability problems mean?

#### Question 5 5. You roll a 6-sided die. What is the probability that the number rolled will be odd or prime? (1 is not a prime number)

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#### Question 6 6. A normal deck of cards has 52 cards in it with four different suits (hearts, spades, clubs, diamonds). What is the probability of drawing an ace of spades or a 3 (from any suit) from a normal deck of cards?

#### Question 7 7. Kate and Kyle are playing a game. They must flip a coin and spin a spinner that has 12 equal sections numbered 1 through 12. What is the probability that Kyle will flip a heads and spin the spinner and get an even number?

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Question 8
8.
Kyle works at a local music store. The store receives a shipment of new CDs in a box. In the shipment, there are 10 country CDs, 5 rock CDs, 12 hip hop CDs, and 3 jazz CDs.

What is the probability that the first CD Kyle chooses from the box will be country?

#### Question 9 9. Which of the following is NOT a criteria of binomial distributions?

#### Question 10 10. What is a probability distribution?

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#### Question 11 11. The probability of selecting a red M&M from a bag is 2/5. If 5 M&Ms are selected, what is the probability of at least one M&M being red?

#### Question 12 12. The name Joe is very common at a school and 1 out of every 10 students go by that name. If there are 15 students in one class, what is the probability that at least one of them is named Joe?

#### Question 13 13. In the context of a sample space, how do we distinguish an event from a subset?

#### Question 14 14. In probability, a/an _____ is an event of a sample space.

#### Question 15 15. What is the variable in an experiment that is used on an experimental group?

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Question 16
16.
Brittany is conducting an experiment in her home economics class. She wants to know if adding an extra ingredient, cinnamon, to her pancakes will make them taste better. She decides to give the first period home economics class regular pancakes, and the second period home economics class the cinnamon pancakes. She asks each group to rank the pancakes on a scale from 1 to 5. What is the **treatment** in this scenario?

#### Question 17 17. Solve the following combination:

#### Question 18 18. Calculate 4! (factorial)

#### Question 19 19. A scientist is measuring the diameters of tree trunks, measuring twenty trees per trip. If the scientist increases their sample size to thirty per trip, then what change should they expect to see in the means of the samples?

#### Question 20 20. Which of the following is TRUE, according to the central limit theorem?

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#### Question 21 21. What is the classical probability (in percentage form) of flipping heads on a quarter?

#### Question 22 22. What is the probability of drawing a yellow, green, or purple gum ball when blindfolded if all of the gum balls are equally in size and accessibility in this jar?

#### Question 23 23. In a fish tank there are 10 clown fish, 4 angel fish, 6 puffer fish, and 5 eels. What is the probability of scooping out a clown fish on the second scoop after scooping out a clown fish on the first scoop and not replacing it? Give your answer as a fraction in its most reduced form.

#### Question 24 24. Jenny has a bowl of M&M's that has 6 brown, 3 green, 4 red, and 12 yellow M&M's. She selects a yellow M&M and does not replace it. What is the probability that her second selection will be a brown M&M?

#### Question 25 25. Using a standard deck of 52 cards, what is the probability of selecting a 4 and then after not replacing the card, selecting another 4?

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#### Question 26 26. All of the letters of MISSISSIPPI are put in a bag. What is the probability of selecting an M and then after not replacing the letter, selecting a P?

#### Question 27 27. You conduct an experiment where you want to measure the number of rolls it takes to get two 6's in a row when you roll a fair six-sided die. State whether the random variable is discrete or continuous and give a summary of its values.

#### Question 28 28. Which of the following is NOT a property of a random variable?

#### Question 29 29. A researcher is studying a population, and decides to use simple random sampling. Why might they have made this decision?

#### Question 30 30. Bag A contains 6 green marbles and 4 white marbles. Bag B contains 3 green marbles and 7 white marbles. If you're blindfolded and select a white marble, what is the probability it came from bag B (assume that you have an equal chance of having selected from either bag)?

#### Probability Concepts in Math Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!