Standard deviation 10 16 18 22 30 42 50

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

Ahigh school has 3636 players on the football team. the summary of the players' weights is given in the box plot. approximately, what is the percentage of players weighing less than or equal to 225225 pounds?

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?