In: Math
Although studies continue to show smoking leads to significant health problems, 20% of adults in the United States smoke. Consider a group of 280 adults.
If required, round your answers to four decimal places.
a. What is the expected number of adults who
smoke?
b. What is the probability that fewer than 40
smoke?
c. What is the probability that from 35 to 70
(inclusive) smoke?
d. What is the probability that 70 or more smoke?