A study was conducted on the
minutes people spend browsing
websites. The time spent is normally
distributed with a mean of 4.5
minutes and a standard deviation of
1.2 About what percentage of
people spent between 4 and 6
minutes browsing the sites? *

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?