MULTIPLE CHOICE. Choose the one alternative that best completes the statement or

Question

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question Provide an appropriate response. 1) Four students drive to school in the same car. The students claim they were late to school and missed a test because of a flat tire. On the makeup test, the instructor asks the students to identify the tire that went flat; front driver's side, front passenger's side, rear driver's side, or rear ssenger's side. If the students didn't really have a flat tire and each randomly selects a tire, what is the probability that all four students select the same tire? 4 A) B) C) D) 256 2) A group of students were asked if they carry a credit card. The responses are listed in the table. 2) Credit Card Not a Credit Card Carrier 49 34 Total 60 40 100 Carrier Class Freshman Sophomore6 Total If a student is selected at random, find the probability that he or she owns a credit card given that the student is a sophomore. Round your answer to three decimal places. C) 0.353 D) 0.850 A) 0.150 B) 0.060

Explanation / Answer

Ans:

1)Probability that all four students select the same tire=1/4^3=1/64

2)

P(carries credit card/sophomore)=P(carrier credit card and sophomore)/P(sophomore)

=(6/100)/(40/100)

=6/40=0.150

Option A is correct(0.150)

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