Mathematics, 17.06.2021 16:00 bwjester0

An instructor who taught two sections of engineering statistics last term, the first with 25 students and the second with 40, decided to assign a term project. After all projects had been turned in, the instructor randomly ordered them before grading. Consider the first 15 graded projects. (a) What is the probability that exactly 10 of these are from the second section? (Round your answer to four decimal places.)
(b) What is the probability that at least 10 of these are from the second section? (Round your answer to four decimal places.)
(c) What is the probability that at least 10 of these are from the same section? (Round your answer to four decimal places.)
(d) What are the mean value and standard deviation of the number among these 15 that are from the second section? (Round your mean to the nearest whole number and your standard deviation to three decimal places.) mean projects standard deviation projects
(e) What are the mean value and standard deviation of the number of projects not among these first 15 that are from the second section? (Round your mean to the nearest whole number and your standard deviation to three decimal places.)
mean projects standard deviation projects.

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 20:40

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.

Answers: 1

Answer

Mathematics, 21.06.2019 21:00

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?

Answers: 1

Answer

Mathematics, 22.06.2019 01:30

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

Answers: 1

Answer

Mathematics, 22.06.2019 02:30

Write the equation of the line that passes through (3, 4) and (2, −1) in slope-intercept form. (2 points) y = 3x − 7 y = 3x − 5 y = 5x − 11 y = 5x − 9

Answers: 1

Answer

You know the right answer?

An instructor who taught two sections of engineering statistics last term, the first with 25 student...

Questions

Mathematics, 16.11.2020 19:00

Would you go out with me ? I’m lonely f. U. C. K ing nobody to talk to...