Question: Let X denote the reaction time, in seconds, to a certain stimulus and Y denote the temperature (F) at which a certain reaction starts to

Let X denote the reaction time, in seconds, to a certain stimulus and Y denote the temperature (°F) at which a certain reaction starts to take place. Suppose that two random variables X and Y have the joint density Find
(a) P (0 < X < 1/2 and 1/4 < y < 1/2)
(b) P(X < Y).

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