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Chapter 4: Q.29 (page 285)

In words, define the random variable X.

Short Answer

Expert verified

The number of years a student will study contemporary with this dance teacher is the random variable X.

Step by step solution

01

Given Information

The random variableXofcontemporary. instructor wants to know what proportion of last year's class will return the next year so she can plan what classes to provide. She has developed the following probability distribution over the years, where represents the number of years a student will study ballet with the teacher and means the probability of studying for those years.

02

Explanation

The number of years a student will study contemporary.

with this dance teacher is the random variable X.

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Most popular questions from this chapter

Construct a probability distribution table for the data.

The World Bank records the prevalence of HIV in countries around the world. According to their data, “Prevalence of HIV refers to the percentage of people ages 15 to 49 who are infected with HIV.”[1] In South Africa, the prevalence of HIV is 17.3%. Let X = the number of people you test until you find a person infected with HIV.

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