Select the correct answer. x f(x) 1 5 2 5.5 3 6 4 6.7 Estimate the value of f '(3) based on the values in the table. A. 0.7 B. 0.6 C. 0.5 D. 0.2

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

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?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?