Suppose that the reaction time sec to a certain stimulus is, Ask an Expert

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Suppose that the reaction time (sec) to a certain stimulus is a continuous random variable with a density function given by f(x)= k/x for 1<=x<=10 and 0 otherwise.

a) Sketch a graph of f(x)

b) Find numerical value of k

c) What is the probability that x exceeds 3?

d) What is the probability that x lies within .25 sec of 3?

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