This problem in Biostats course. Please i need answer for this question all the parts "a,b,c,d,e&f" and include all the steps for each... thank you!!

3. (10 points) Suppose that it is known that 10 percent of a certain population is color blind. If a random sample of 20 people is drawn from this population, answer the following: (a) What is the probability of five or fewer are color blind? (b) What is the probability that 6 or more will be color blind? (c) What is the probability between 6 and 9, inclusive will be color blind? (d) What is the probability that two, three or four will be color blind? (e) How many people on average will be color blind in the sample? (f) What is the standard deviation of the number of people who will be color blind in the sample