subject
Mathematics, 05.12.2021 19:50 bbyitskeke7160

A manufacturer doesn’t know the mean and Standard deviation of the ball bearings he is producing. However, a sieving system rejects all bearings larger than 2.4 cm and those under 1.8 cm in diameter. Out of 1000 ball bearings 8% are rejected as too small and 5.5% as too big. What is the mean and the standard deviation of the ball bearings produced?

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 14:30
What is the value of x? enter your answer in the box. (cm)
Answers: 1
question
Mathematics, 21.06.2019 15:30
The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.
Answers: 1
question
Mathematics, 21.06.2019 18:30
Which of the following is the true for f(x) = 5cos
Answers: 2
question
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
You know the right answer?
A manufacturer doesn’t know the mean and Standard deviation of the ball bearings he is producing. Ho...
Questions
question
Mathematics, 17.12.2020 20:30
question
Mathematics, 17.12.2020 20:30
question
Mathematics, 17.12.2020 20:30
Questions on the website: 13722367