Probability distribution described by the following density, Ask an Expert

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1. Suppose X is a continuous random variable taking values between 0 and 1 and having a probability distribution described by the following density curve.

184_Probability distribution.gif

The probability that X takes a value between 0 and 3/4 is
A. 0.875.
B. 0.75.
C. 3/8.

2. The weight of a medium size orange selected at random from a large bin of oranges at the local supermarket is a random variable with mean μ = 12 ounces and standard deviation σ = 1.2 ounces. Suppose we independently pick two oranges at random from the bin. The expected value of the sum of the weights of the two oranges, in pounds (1 pound = 16 ounces) is

A. 24.
B. 1.5.
C. 0.75.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9158079

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