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26 Oct 2021
Given information
A ballet instructor is interested to know what percentage of each year’s class will be continued on to the next so that she can plan what classes to offer. Over the years, she has established the following probability distribution where
: denotes the number of years a student will study ballet with the teacher
: denotes the probability of studying for those years.
Step-by-step explanation
Step 1.
As we know, Sum of all probabilities of values taken by a Random Variable is equal to . So,
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