7. Facebook provides a variety of statistics on its website that detail the growth and popularity of the site. on average 20% of the 18 34 year olds check their Facebook profiles before getting out of bed in the morning. suppose this percentage follows a normal distribution with a standard deviation of 5%.
find the probability that the percent of 18 to 34 year olds who check Facebook before getting out of bed in the morning is at least 30
find the 95th percentile and express it in a sentence