Why are probability samples advantageous to the researchers?
A. The the method by which they a...
Mathematics, 10.03.2020 17:30 oranzajimenez
Why are probability samples advantageous to the researchers?
A. The the method by which they are selected limits conscious and unconscious sampling bias.
B. The accuracy or representativeness of the sample can be estimated.
C. They are perfectly representative of the population from which they are drawn.
D. all of the above.
E. A and b only are correct.
Answers: 1
Mathematics, 21.06.2019 19:50, Roshaan8039
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 21:40, chunkymonkey090
Ihonestly have no clue if it's each or none.
Answers: 1
Mathematics, 21.06.2019 22:00, michelle7511
The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.
Answers: 1
Mathematics, 31.01.2020 12:58
Physics, 31.01.2020 12:58
Mathematics, 31.01.2020 12:58
Mathematics, 31.01.2020 12:58