Theoretical yield is 6.05 x 104 kg of product; actual yield is 4.18 x 104 kg
ans: 69.1% yield

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

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?

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18