Height of rock formation, feet 3–9 10–29 30–49 50–74 75 and higher number of rock formations in park 118 89 36 36 10 for a rock formation chosen at random from this park, use the preceding information to estimate the probability that the height of the rock formation is as follows. (round your answers to two decimal places.)

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5