Suppose that , and is continuous.  Which of the following would guarantee that is a local minimum value of

Oil leaks from an uncapped well and pollutes a late. Suppose is the amount of oil (in gallons) days after the leak is discovered. Five days after the leak is discovered, environmental engineers measure the amount of oil in the water to be 500 gallons () with a current inflow rate of gallons per day (). The inflow rate decreases by 10 gallons/day each day (

Refer to problem 29. The frequencies, in order, are:

Choose the highest level of measurement.Ages of children enrolled in a daycare.

Classify the following variable as discrete or continuous.The average length of bridges in the United States.

Identify the sample by naming the sampling technique used.Pick a random sample of students enrolled at your college and determine the number of credit hours they have each accumulated toward their degree program.

Identify the sample by naming the sampling technique used.Measure the length of time every fifth person coming into a bank waits for teller service over a period of two days.

A random sample of 30 computer outlet stores were selected in the New York area and the price of a More Joy joystick was checked at each store. The results to the nearest dollar follow:78, 65, 92, 100, 99, 63, 82, 87, 91, 95, 102, 73, 69, 75, 86, 94, 97, 112, 115, 76, 89, 96, 94, 69, 70, 72, 80, 100, 90, 74Make a frequency table using five classes. The classes are:

Identify the sample by naming the sampling technique used.Survey five friends regarding their opinion of the student cafeteria.

Refer to problem 34. The percent frequencies, in order, are: