\\' I' "'\"I The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. A group of 105 randomly selected Americans over the age of 25 were surveyed. Use the normal approximation to the binomial distribution to find the following. (Round all decimals to at least 3 places.) (a) What is the probability that 87 of the residents who were surveyed were high school graduates? (b) What is the probability that at least 84 of the residents who were surveyed were high school graduates