# GED Math: Data, Probability & Statistics 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!

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#### Question 1 1. If we are asked to find how many ways there are to make a 5-digit lock code, is repetition allowed?

#### Question 2 2. In a History course, a student's grade is composed of papers (40%), tests (40%) and a final exam (20%). The student has earned a 90 value on all papers and 80 value on all tests. What is the minimum score the student needs to earn on the final exam to achieve an overall grade of a B+ (87.0 before rounding)?

#### Question 3 3. Which order do data sets need to be in before you can find the mean, median, and mode?

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Question 4
4.
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 and 3 jazz CDs.

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

#### Question 5 5. Assume you are at an ice cream shop and you order a bowl of ice cream with 3 scoops. There are 8 flavors to choose from. How many different bowls of ice cream can you have?

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#### Question 6 6. Using a standard deck of cards (which has 26 red cards and 26 black cards, with 13 cards of every suit), what is the probability of selecting a red card, and then after replacing the card, selecting a heart card?

#### Question 7 7. All of the letters that spell MISSISSIPPI are put into a bag. What is the probability of selecting a vowel, and then after replacing the letter, also drawing an S?

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Question 8
8.
What is the median in this data set for the number of cupcakes eaten per person at a cupcake eating contest?

{10, 20, 15, 10, 30, 21, 18, 12}

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Question 9
9.
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 and 3 jazz CDs.

What is the probability that the first CD that Kyle pulls from the box will not be hip hop?

#### Question 10 10. The Entertainment package on DirecTV currently costs $57.99/month with promotional discounts of $28/month for the first year and $10/month for the second year when signing a two-year contract. The America's Top 120 package on Dish Network costs slightly less at $54.99/month but only has a promotional discount of $25/month for the first year with no discount in the second year when signing a two-year contract. Calculate which service has a lower average monthly price over the two-year period and the difference in the average monthly price between the two packages.

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#### Question 11 11. The probability of winning a prize at a ball toss at a carnival is 2/7. What is the probability of not winning a prize?

#### Question 12 12. A student's grade in a Psychology course is comprised of tests (40%), quizzes (20%), papers (20%), and a final project (20%). His scores for each of the categories are 85 (tests), 100 (quizzes), 92 (papers) and 84 (final project). Calculate his overall grade.

#### Question 13 13. 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?

#### Question 14 14. Below is a chart showing the number of goals a hockey team scored in a game and how many times each value occurred over a full 82 game season. Calculate the average number of goals/game that the team scored.

#### Question 15 15. How many distinct ways are there to arrange the letters in the word LIGHT?

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#### Question 16 16. Using a spinner with 12 equal sections numbered 1 through 12, what is the probability that Jim will spin a number less than 8?

#### Question 17 17. If you roll a die three times, what is the probability of rolling only even numbers?

#### Question 18 18. If we are asked how many 5 digit lock codes we can make, are we dealing with permutations or combinations?

#### Question 19 19. All of the letters of MISSISSIPPI are put in a bag. What is the probability of selecting a M and then after not replacing the letter, selecting a P?

#### Question 20 20. Why would you use a weighted average instead of a traditional average calculation?

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#### Question 21 21. Using a standard deck of cards, what is the probability of selecting a 4 and then after not replacing the card, selecting another 4?

#### Question 22 22. What is the mean of this data set: 4, 5, 6, 7, 4, 5, 8?

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Question 23
23.
What is the mode of this data set of the number of baby rabbits born to different mother rabbits?

{6, 4, 5, 8, 6, 7, 8, 2}

#### Question 24 24. Suppose you are making some soup. You have 7 types vegetables in front of you (one serving of each) and you want to include 4 of them in your soup (each being different). How many ways are there to do this?

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Question 25
25.
What is the median of this data set?

{1, 2, 3}

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Question 26
26.
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 and 3 jazz CDs.

What is the probability that Kyle will select a jazz CD from the box, and then, without replacing the CD, select a country CD?

#### GED Math: Data, Probability & Statistics 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!