Suppose a fair coin is tossed three times. Let the random variable X represent the number of heads on the first and second tosses and let Y represent the number of heads on the second and third tosses. Write the joint probability distribution of X and Y.
I don’t understand how to plot them appropriately. For example, how do I know 2/8 is plotted at (1,1)? For some reason, I can’t grasp this basic question.
Thanks in advance.
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