10. In a certain country, 20% of the female adult population smoke regularly. In a random sample of 800 adults, what is the probability that: a) less than 150 are smokers? Use the normal approximation to the binomial. b) 200 or more are smokers? Use the normal approximation to the binomial. c) Find answers to (a) and (b) using the binomial distribution and R. Copy and paste the code and the answer into your document