A random variable X is uniformly distributed between 45 and 150. 1) Determine th

Question

A random variable X is uniformly distributed between 45 and 150. 1) Determine the standard deviation a.0.000 b.0.1429 c.97.5 d.30.31 2) From a group of three finalists for a privately endowed scholarship, two individuals are to be selected for the first and second places. Determine the number of possible selections. a.3 b.6 c.2 d.4 3) Three applications for admission to a local university are checked, and it is determined whether each applicant is male or female. The number of sample points in this experiment is a.2 b.4 c.6 d.8

Explanation / Answer

(1)(b-a)^2/12=105^2/12 is the variance so standard deviation=30.31 (2)b.6 (3)d.8

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