The first two steps for simplifying are shown below. Step 1: =
Step 2: =

Complete the last step by simplifying the expression. What is simplified?

14
15
14
15

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?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Question 5 of 10 2 points if a population is a sample of the population could be a. registered voters; all citizens o o b. baptists; all religious people o c. people who purchased shoes; all customers o d. the entire school faculty; math teachers