How do i show my work for this statistics problem?
there are 5 boys 3 girls in a class and 4 boys and 2 girls in another. are the boys in the second class or girls in first class more likely to be randomly selected?

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?