Math 100 Exam Review

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100

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Statistics

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Feb 20, 2024

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11/29/22, 10:16 AM Lumen OHM Exam 3 Review Assignment - Modules 8-11 Daniel Marlin Chapter 8 | S @ Question 1 @ o/gpts O3 299 Given that P(E) = 0.9, what must be true about the event E? Select the best answer. ){:rhe event E is probable but not certain. The event E is impossible. This is not a valid probability. The event E is possible but not likely. The event E is certain. Question Help: [ Read Calculator @ Question 2 & o/8pts O3 299 https://ohm.lumenlearning.com/assess2/?cid=65679&aid=4834481#/print 1/25

11/29/22, 10:16 AM Lumen OHM ‘Given that P(E) = 0.1, what must be true about the event E? Select the best answer. This is not a valid probability. >(The event E is possible but not likely. The event E is probable but not certain. The event E is certain. The event E is impossible. Question Help: B Read Calculator @ Question 3 Zo/8pts O3 299 Use the spinner below. Write your answer as a reduced fraction. P(odd number) = N é/@ - j Question Help: [®]Video Calculator @ Question 4 o8 pts O3 299 https://ohm.lumenlearning.com/assess2/?cid=65679&aid=4834481#/print 2/25

11/29/22, 10:16 AM Lumen OHM ‘A die is rolled. Find the probability of the given event. Write your answers as whole numbers or reduced fractions. (@) The number showing is a 5 P(5) = "“"‘; (b) The number showing is an even number P(even) = — | (c) The number showing is greater than 3 P(greater than 3) = Question Help: (] Video Calculator @ Question 5 Mo/ pts O3 299 A bag contains 2 gold marbles, 7 silver marbles, and 23 black marbles. You randomly select one marble from the bag. What is the probability that you select a gold marble? Write your answer as a reduced fraction. P(gold marble)=t ~=/] 1 o Question Help: []Video Calculator @ Question 6 Mo/8pts O3 299 https://ohm.lumenlearning.com/assess2/?cid=65679&aid=4834481#/print 3/25

11/29/22, 10:16 AM Lumen OHM ‘Giving a test to a group of students, the grades and gender are summarized below A B C | Total Male 2|20 | 16 38 Female | 12 4 6 22 Total | 14 | 24 | 22 60 If one student is chosen at random, find the probability that the student did NOT get an "B". Give your answer as a reduced fraction. P(student did NOT get an "B") = L___JE m Question Help: [®]Video Calculator @ Question?7 @ ogpts O3 299 The letters in the word ARIZONA are scrambled. Write your answers in decimal form. Round to the nearest thousandth as needed. What is the probability that the first letter is A? ! 1& b What is the probability that the first letter is Z? \ % What is the probability that the first letter is avowel? _ &7 | What is the probability that the first letter is H? I, Question Help: (] Video Calculator @ Question 8 @o/8pts D3 299 https://ohm.lumenleaming.com/assess2/?cid=65679&aid=4834481#/print 4/25

11/29/22, 10:16 AM Lumen OHM *An American roulette wheel has 38 slots: two slots are numbered 0 and 00, and the remaining slots are numbered from 1 to 36. Assume 0 and 00 are even. What are the odds for the ball landing in an even-numbered slot? 10 to s What are the odds aganst the ball landing in an even-numbered slot? 4 tw_ |0 Simplify your answers. Question Help: (2]Video Calculator @ Question 9 M o/8pts O3 299 27 Suppose the probability of an event is 37 What are the odds for the event happening? 27 10 U What are the odds against the event happening? 4 to 727 Question Help: []Video Calculator @ Question 10 Morgpts O3 299 A bag contains 2 gold marbles, 6 silver marbles, and 26 black marbles. Someone offers to play this game: You randomly select one marble from the bag. If it is gold, you win $3. If it is silver, you win $2. If it is black, you lose $1. What is your expected value if you play this game? § = Calculator @ Question 11 Mo/8pts O3 299 https://ohm.lumenleaming.com/assess2/?cid=65679&aid=4834481#/print 5/25

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