Mathematics, 30.07.2019 15:30 1129682
Which of the following is an advantage of an observational study over a sample survey? a)observational studies are not dependent on people’s responses, which may not be truthful. b)observational studies involve the random selection of subjects. c)observational studies do not manipulate variables. d)observational studies do not involve treatments.
Answers: 1
Mathematics, 21.06.2019 13:30
Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments.which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8
Answers: 1
Mathematics, 21.06.2019 15:30
Which equation represents the line that passes through the points and (4, 10) and (2, 7)? y = 3/2x - 11y = 3/2x +4y = - 3/2x + 19y = - 3/2x + 16
Answers: 2
Mathematics, 21.06.2019 20:20
One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%
Answers: 1
Which of the following is an advantage of an observational study over a sample survey? a)observatio...
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