Suppose an unfair, standard six-sided die is tossed and the probability of tossing a three is 0.21. Suppose the die is tossed 50 times. Define X to be the variable which counts the number of threes...

Suppose an unfair, standard six-sided die is tossed and the probability of tossing a three is 0.21. Suppose the die is tossed 50 times. Define X to be the variable which counts the number of threes tossed in 50 attempts. Use this information to answer the following questions a) How is X distributed? b) What is the probability of tossing at most 13 in threes in 50 tosses of this die? c) What is the probability of tossing at least 14 threes in 50 tosses of this die?