Provide an appropriate response. 1) A multiple-choice test has five questions, e

Question

Provide an appropriate response. 1) A multiple-choice test has five questions, each with five choices for the answer. Only one of the choices is correct. You randomly guess the answer to each question. What is the probability that you answer at least one of the questions correctly? he random variable x represents the number of tests that a patient entering a hospital will have along with the corresponding deviation. Round your answers to two decimal places probabilities. Find the mean and standard o2 34 17 ID: ES6L 4.1.5-2 A group of students were asked if they carry a credit card. The responses are listed in the table 3) Credit Card Not a Credit Card Class-1 Carrier | Carrier . Total Freshman 60 40 100 45 15 Sophomore35 Total 50 50 given that the student is a freshman. Round your answer to three decimal places. ID: ES6L 3.2.2-1+ If a student is selected at random, find the probability that he or she owns a credit card

Explanation / Answer

Probability that he or she owns a credit card given that the student is freshman =

Number of students who are freshers and a credit card carrier / Number of students who are freshers = 15/60 = 0.25

Probability that he or she owns a credit card given that the student is freshman = 0.25

Class Credit Card Carrier Not a credit card carrier Total Freshman 15 45 60 Sophomore 35 5 40 Total 50 50 100

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