Watsuppp …. I’m bored ~

What is the value of r of the geometric series?

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

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?