9. The length of time it takes students to complete a statistics examination is uniformly distributed and varies between 80 and 120 minutes. Find the mathematical expression for the probability...

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9.<br>The length of time it takes students to complete a statistics examination is<br>uniformly distributed and varies between 80 and 120 minutes.<br>Find the mathematical expression for the probability density<br>а.<br>function.<br>Compute the probability that a student will take between 90 and 100<br>minutes to complete the examination.<br>b.<br>Compute the probability that a student will take no more than 80<br>minutes to complete the examination.<br>С.<br>d.<br>What is the expected amount of time it takes a student to complete<br>the examination?<br>е.<br>What is the standard deviation for the amount of time it takes a<br>student to complete the examination?<br>

Extracted text: 9. The length of time it takes students to complete a statistics examination is uniformly distributed and varies between 80 and 120 minutes. Find the mathematical expression for the probability density а. function. Compute the probability that a student will take between 90 and 100 minutes to complete the examination. b. Compute the probability that a student will take no more than 80 minutes to complete the examination. С. d. What is the expected amount of time it takes a student to complete the examination? е. What is the standard deviation for the amount of time it takes a student to complete the examination?

Jun 05, 2022

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9. The length of time it takes students to complete a statistics examination is uniformly distributed and varies between 80 and 120 minutes. Find the mathematical expression for the probability...

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