Suppose that in a population of adults:   30% have no sisters 35% have one sister 20% have two sisters 15% have three sisters   No one has more than three sisters.   A person is selected at random from this population.  Let X denote the number of sisters he/she has.   Find EV(X), the expected value of X. Group of answer choices   (  ) 2.0   (  ) 1.5   (  ) undefined   (  ) 1.0   (  ) 1.2

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.