Suppose you have a mean = 12 and a standard deviation = 3. What is the probability that a data member, x, is above 18?

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?