QUESTION 11: "In (2 less than X less than 8), X is a " continuous random variable discrete random variable no variable constant QUESTION 12: Discrete data are made continuous by using class boundaries class intervals cumulative frequency probability QUESTION 13: Find the expectation of a random variable X? if X = 7, 9, 10, 11, 12, and P(X) = 0.2, 0.25, 0.3, 0.15, 0.1 respectively" 11.5 4.5 9.5 14.5 QUESTION 14: Find the Mean of f(x), where f(x) = 5X+5. The probability distribution of a random variable X ; if X = 12, 14, 15, 16, 17, and P(X) = 0.2, 0.25, 0.3, 0.15, 0.1 respectively" 11 37.5 42 77.5 QUESTION 15: A small voting district has 110 female voters and 90 male voters. A random sample of 10 voters is drawn. What is the probability exactly 7 of the voters will be female? 0.75 0.51 0.224 0.1665

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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.