44.
how much do you study? a survey among freshmen at a certain university revealed tha...
Mathematics, 10.11.2019 07:31 madisonrosamond99
44.
how much do you study? a survey among freshmen at a certain university revealed that the number of hours spent studying the week before final exams was normally distributed with mean 25 and standard deviation 7.
a.
what proportion of students studied more than 40 hours?
b.
what is the probability that a randomly selected student spent between 15 and 30 hours studying?
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 15:40
Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half
Answers: 1
Mathematics, 21.06.2019 21:30
For the inequality |c| < |d| to be true, which of the following must be true?
Answers: 2
Mathematics, 21.06.2019 21:50
Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.
Answers: 3
Mathematics, 22.06.2019 00:30
Which polynomial equation of least degree has -2, -2, 3, and 3 as four of its roots? (x + 2)(x - 3) = 0 (x - 2)-2(x + 3)3 = 0 (x-2 + 2)(x2- 3) = 0 (x + 2)2(x - 3)2 = 0
Answers: 2
You know the right answer?
Questions
History, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
History, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
Chemistry, 23.10.2020 02:01
Chemistry, 23.10.2020 02:01
Social Studies, 23.10.2020 02:01
Chemistry, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
Mathematics, 23.10.2020 02:01
