Anew school randomly assigns a five-character student code to every prospective student. the school uses the characters 1, 2, 3, 4, 5, w, x, y, and z. if none of the student codes contain a repeated character, what is the total number of codes that can be randomly assigned?

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6