Please i need help with question 21 and 22 21. for Usea. How many are in the study?20. Texting and If four high are find theis by the Test with test results,In use from the test for whichnegative a to 4-1 on page 159.)probability all while driving.b. How of the had a true result?probabilitre4 false positive (incorrect) results; among 157 negative results, there are 3 falset Testing for Marijuana UseHow many subjects are included in the study?of the subjects had a true negative result?is the probability that a randomly selected subject had a true negative result?eting for Marijuana Use If one of the test subjects is randomly selected, find the pro24 that the subject tested negative or used marijuana.Testing for Marijuana Use If one of the test subjects is randomly selected, find the prlity that the subject tested positive or did not use marijuana.4 Testing for Marijuana Use If one of the test subjects is randomly selected, find the pLility that the subject did not use marijuana. Do you think that the result reflects the genopulation rate of subjects who do not use marijuana?Redundancy. Exercises 25 and 26 involve redundancy.25. Redundancy in Computer Hard Drives It is generally recognized that it ito backup computer data. Assume that the following refer to use of Western DigitalWD60EFRX hard drives, which have an annual failure rate of 3.66% (based on daBackblaze, Inc.).a. If you store all of your computer data on a single hard drive, what is the probabilitydrive will fail during a year?. If all of your computer data are stored on a hard drive with a copy stored on a secask drive, what is the probability that both drives will fail during a year?i copies of all of your computer data are stored on three independent hard drives,obability that all three will fail during a year?Describe the improved reliability that is gained with backup drives.Alarm Clock Life Hack Each of us must sometimes wake up early for some

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Alcohol If four different high school drivers are randomly selected, find the they all texted while driving. 24, use these results from the "I-Panel-THC" test for marijuana use, which he company Drug Test Success: Among 143 subjects with positive test results, se positive (incorrect) results; among 157 negative results, there are 3 false ect) results. (Hint: Construct a table similar to Table 4-1 on page 159.) Marijuana Use pjects are included in the study? the subjects had a true negative result? obability that a randomly selected subject had a true negative result? Marijuana Use If one of the test subjects is randomly selected, find the pn pject tested negative or used marijuana. larijuana Use If one of the test subjects is randomly selected, find the ject tested positive or did not use marijuana. arijuana Use If one of the test subjects is randomly selected, find the ject did not use marijuana. Do you think that the result reflects the g subjects who do not use marijuana? zercises 25 and 26 involve redundancy. in Computer Hard Drives It is generally recognized that it r data. Assume that the following refer to use of Western Digita drives, which have an annual failure rate of 3.66% (based on d. your computer data on a single hard drive, what is the probabilit a year? puter data are stored on a hard drive with a copy stored on a se e probability that both drives will fail during a year?

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 6ECP: In Pennsylvania’s Cash 5 game, a player chooses five different numbers from 1 to 43. If these five...