Mathematics, 19.12.2019 06:31 kira3039
Ten people were chosen at random and surveyed. the survey asked participants for the number of hours they sleep per night and the amount of their annual income. letting x represent the number of hours the participant sleeps per night and y represent the participant's annual income, the surveyor calculated the correlation coefficient between x and y to be 0.39. interpret the correlation coefficient calculated by choosing the statement below which correctly describes the correlation between x and y.
Answers: 2
Mathematics, 21.06.2019 18:20
Choose all that apply. select all of the fees a credit card may have. annual fee apr balance transfer fee cash advance fee late fee overdraft fee over-the-limit fee
Answers: 2
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
Mathematics, 21.06.2019 23:00
Acaterer knows he will need 60, 50, 80, 40 and 50 dinner napkins on five successive evenings. he can purchase new napkins initially at 25 cents each, after which he can have dirty napkins laundered by a fast one-day laundry service (i.e., dirty napkins given at the end of the day will be ready for use the following day) at 15 cents each, or by a slow two-day service at 8 cents each or both. the caterer wants to know how many napkins he should purchase initially and how many dirty napkins should be laundered by fast and slow service on each of the days in order to minimize his total costs. formulate the caterer’s problem as a linear program as follows (you must state any assumptions you make): a. define all variables clearly. how many are there? b. write out the constraints that must be satisfied, briefly explaining each. (do not simplify.) write out the objective function to be minimized. (do not simplify.)
Answers: 1
Mathematics, 22.06.2019 02:30
What is the difference between –12 and –5? what is the distance between –12 and –7 on a number line? units
Answers: 1
Ten people were chosen at random and surveyed. the survey asked participants for the number of hours...
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