Mathematics, 11.11.2019 07:31 eddyy5900
Astudent is taking a multiple choice exam where each problem has 5 choices. a correct answer gains 1 point. an incorrect answer loses one-half of a point. a blank makes no change to the grade.
what is the expected value of guessing on a problem?
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 12:40
What are the domain and range of the functiony = 2(x - 3)2 + 4?
Answers: 2
Mathematics, 21.06.2019 19:50
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 20:30
Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 2
You know the right answer?
Astudent is taking a multiple choice exam where each problem has 5 choices. a correct answer gains 1...
Questions
Mathematics, 18.02.2021 22:20
History, 18.02.2021 22:20
Biology, 18.02.2021 22:20
Mathematics, 18.02.2021 22:20
Mathematics, 18.02.2021 22:20
Chemistry, 18.02.2021 22:20
Biology, 18.02.2021 22:20
Mathematics, 18.02.2021 22:20
English, 18.02.2021 22:20
Biology, 18.02.2021 22:20
