Let the random variable XX be the number of rooms in a randomly chosen owner-occupied housing unit in a certain city. The distribution for the units is given below.   X 3 4 5 6 7 8 9 10 P(X) 0.07 0.27 0.37 0.19 0.03 0.04 0.02 ? (a) Is X a discrete or continuous random variable? (Type: DISCRETE or CONTINUOUS) ANSWER:  (b) What must be the probability of choosing a unit with 10 rooms? P(X=10) (c) What is the probability that a unit chosen at random has three rooms? P(X=3) (d) What is the probability that a unit chosen at random has more than 5 rooms? P(X>5) (e) What is the probability that a unit chosen at random has less than five rooms? P(X<5

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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.