The mean age of 6 women in an office is 25 years old. The mean age of 10 men in an office is 27 years old.
What is the mean age (nearest year) of all the people in the office?

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?