My Notes Ask Your Teach -1 points TanFin11 8 1.022 An examination consisting of

Question

My Notes Ask Your Teach -1 points TanFin11 8 1.022 An examination consisting of ten true-or-false questions was taken by a class of 100 students. The probability distribution of the random variable X, where X denotes the number of questions answered correctly by a randomly chosen student, is represented by the accompanying histogram. The rectangle with base centered on the number 8 is missing. What should be the height of this rectangle? Enter a .15 10 .05 012 3 4567 8 9 10 Submit Answer Save Progress My Notes Ask Your Teach 89 points 1 Previous Answers TanFint1 8.1.026 The Public Housing Authority in a certain community conducted a survey of 1000 families to determine the distribution of families by size. The results are given below the mean tredocK 7.2 in-class notes (1) docx . Show . 8. 2 enline assignment docx 75-7.6 in-Class Not-docx .3-7.4 In class eote doc MacBook Air 11 4

Explanation / Answer

The probability of all the bars should add up to 1. thus it is (0.05+0.1+0.25+x+0.2+0.05)=1, thus x is 0.35

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