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Secure https//www.mathol.com/Student/Player Test.aspx?testld 1829939488icenterwin yes ECO 271 Business Statistics I (1) Victoria Reid & 7 Test: Exam- Midterm Time Limit: 02:00:00 This Question: 5 pts 3 of 17 (o complete) This Test: 10 A psychology quiz contains Sive multiple-choice questions Let x represent the number of questions a student answers corectly a. Is x a continuous or discrete random variable? b what are tie possile values of x? a. Is x a continuous or discrete random variable? O Discrete O Continuous b what arethe possble values of x? (Use a comma to separate answers as needed Use ascending order Cick to select your answers)

Explanation / Answer

a)

Here, the variable x denotes the number of questions a student answered correctly in multiple choice quiz.

The discrete random variable is nothing but which takes coountable and finite number of values. Whereas the continuous random variable takes all values in given interval of numbers.

In that case the number of correctly answered questions in the are finite.

So the given random variable is discrete random variable.

b)

The quiz contains five multiple choice questions. So student can answer no question correctly or 1 question or 2 or so on. Also he can answer all questions correctly.

Hence the possible values of x are {0, 1, 2, 3, 4, 5}

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