Hello please help in solving the problems below A single fai

Hello, please help in solving the problems below:

A single fair 4-sided die is tossed once. Let the random variable X_1 = the number of dots on the face of the die. Write out the PMF p_x1(k) and the CDF F_x1(x) of this RV. Graph the CDF. Calculate and show on your graph F_x1 (0), F_x1 (1.5), F_x1 (4- ), F_x1 (4.25). A single fair 4-sided die is tossed once. Define a new random variable X_2 = one over the number of dots on the face of the die.

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