Question: A random variable Y is said to have a Beta probability distribution with parameters > 0, > 0 if and only if the density function
A random variable Y is said to have a Beta probability distribution with parameters > 0, > 0 if and only if the density function of Y is
f(y)={ y^1(1y)^1 /B(,) , 0 y < 1
0 elsewhere
Errors in measuring the time of arrival of a wave front from an acoustic source sometimes have an approximate Beta distribution. Suppose that these errors, measured in microseconds, have approximately a Beta distribution with = 1, = 2.
(a) What is the probability that the measurement error in a randomly selected instance is less then 0.5 s?
(b) Give the mean and standard deviation of the measurement errors?
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