Mathematics, 05.05.2020 07:33, kvngnick

The average life of a bread-making machine is 7 years, with a standard deviation of 1 year. Assuming that the lives of these machines follow approximately a normal distribution, find the probability that the mean life of a random sample of 9 such machines falls between 6.4 and 7.2 years.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:30, gabrielmtrue

Acity plans to build a new rectangular-shaped park. the perimeter of the park will be 940 meters. the width of the park will be 300 meters. what will be the length, in meters, of the new park?

Answers: 1

continue

Mathematics, 21.06.2019 17:20, polarbear3787

Which system of linear inequalities is represented by the graph? x-3y > 6 and y? 2x + 4 x + 3y > 6 and y? 2x - 4 x - 3y > 6 and y? 2 - 4 x + 3y > 6 and y > 2x + 4 no be 2 -1.1 1 2 3 4 5 submit save and exit next mark this and retum be

Answers: 1

continue

Mathematics, 21.06.2019 20:00, Clervoyantyvonne

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2

Answers: 1

continue

Mathematics, 21.06.2019 21:00, india73

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?

Answers: 2

continue

Do you know the correct answer?

The average life of a bread-making machine is 7 years, with a standard deviation of 1 year. Assuming...