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Basic Probability and Statistics: Help and Review Chapter Exam

Practice 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 "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.

Find the standard deviation for the following data set:

16, 20, 14, 24, 16, 19, 30, and 8

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Question 2 2. There are a few assumptions that must be met to run tests of significance that use z scores. Which of the following is NOT one of the assumptions that must be met?

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Question 3 3. 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?

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Question 4 4. At a local ice cream parlor, there are 6 different flavors of ice cream from which to select (strawberry, chocolate, vanilla, rocky road, mint chocolate chip, and peanut butter). Each ice cream sundae must include 2 different flavors of ice cream; what is the probability that the next customer's sundae will have vanilla and chocolate (in either order)?

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Question 5 5. 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?

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Question 6 6. Using a spinner with 12 equal sections numbered 1 through 12, what is the probability that Jim will spin a number less than 8?

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Question 7 7. 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?

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Question 8 8. The local bowling team plays in a 7-team league where each team plays other teams 4 times in a season. Using the combination formula, how many different games will be played in a season?

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Question 9 9. During the first four Summer Olympic games attended by the United States, these medal counts were awarded. Calculate the mode number of medals won during these Olympic Games.

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Question 10 10. Given the probability of event A is 30%, Event B is 70%, and that they are independent events, what is the compound probability that they both occur?

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Question 11 11. Using the table below, determine the relative win frequency for the Lions rounded to the closest whole percent.

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Question 12 12. Annie writes the numbers 1 through 10 on note cards. She flips the cards over so she cannot see the number and selects three cards from the stack. What is the probability that she has selected the cards numbered 1, 2, and 3?

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Question 13 13. The bar graph shows the top five grossing movies from 2015. What was the second highest grossing movie?

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Question 14 14. The definition of sample space is:

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Question 15 15. Given the statements p: Bridget lives in Florida and q: Bridget drives a red car, write the compound statement 'Bridget lives in Florida and Bridget drives a red car' using the appropriate symbols.

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Question 16 16. The following tree diagram represents the possible outcomes of a certain event. What outcome is represented by the path marked with pink branches?

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Question 17 17. What is the range of the function {(9,2), (4,-5), (8,8), (1, 15)}?

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Question 18 18. Jimmy is making multi-flavored ice cream cones by scooping in different flavors one at a time. Jimmy has 6 different flavors but can only put 3 flavors in each cone. The order of the flavors is important to him as it affects how he tastes each ice cream. How many different arrangements of cones can Jimmy make?

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Question 19 19. 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 20 20.

Find the variance for the following data set:

101, 106, 125, 142, 78, and 109

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Page 5

Question 21 21. The ________ is the point on the normal curve at which we will reject or fail to reject the null hypothesis.

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Question 22 22. On a 5 question, multiple-choice test, what is the probability that you will get at least one problem correct while guessing? Each question has 5 choices.

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Question 23 23. In Mr. Martin's math class there are 15 students out of which 4 will be selected to receive a special award. How many combinations of students can be selected?

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Question 24 24. While playing with a standard deck of playing cards, what is the probability that Jim's 5th card will be red after selecting 4 cards that were also red and not replacing them? (Hint: There are 52 cards in a deck which contains 26 red and 26 black cards.)

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Question 25 25.

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 that Kyle pulls from the box will NOT be hip hop?

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Page 6

Question 26 26. 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 27 27. Solve the following combination:

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Question 28 28. During the first four Summer Olympic games attended by the United States, these medal counts were awarded. Calculate the mean number of medals won during these Olympic Games. (Round it to the nearest whole number.)

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Question 29 29. What is compound probability?

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Question 30 30. What is the relative frequency of losses for the Bears rounded to the closest whole percent?

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Basic Probability and Statistics: Help and Review 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 "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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