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Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919

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Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919
Textbook Problem
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Finding Frequency and Probability Distributions In Exercises 5 and 6, (a) find the frequency distribution for the random variable and (b) find the probability distribution for the random variable. See Examples 2 and 3.

Exam Three students answer a true-false question on an examination. A random variable assigns the number 0, 1, 2, or 3 to each possible outcome, depending on the number of answers of true among the three students.

(a)

To determine

To calculate: The frequency distribution for the random variable when three students answer a true-false question on an examination.

Explanation

Given information:

The provided information that is three students answer a true-false question on an examination. A random variable assigns the number 0, 1, 2, or 3 to each possible outcome, depending on the number of answers of true.

Calculation:

Consider the provided information that is three students answer a true-false question on an examination. A random variable assigns the number 0, 1, 2, or 3 to each possible outcome, depending on the number of answers of true.

Let, x be the random variable that represents the number of true answers in each possible outcome and f(x) represent the frequency of the random variable

(b)

To determine

To calculate: The probability distribution for the random variable when three students answer a true-false question on an examination.

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