Please help solve!!

A random variable has a triangular probability density function with a=50,b=375, and m=250. (a) Sketch the probability distribution function for this random variable. Label the points a=50,b=375, and m=250 on the x axis. Choose the correct graph below. (iii) (b) What is the probability that the random variable will assume a value between 100 and 250 ? If required, round your answer to four decimal places. (c) What is the probability that the random variable will assume a value greater than 330 ? If required, round your answer to four decimal places