subject
Mathematics, 22.06.2019 16:20 marlenerojas201

The distribution of scores in a exam has a normal distribution with a mean of 82 and a standard deviation of 13. what is the probability that a randomly selected score was less than 80? enter your answer using decimal notation (and not percentages), and round your result to 2 significant places after the decimal (for example the probability of 0.1877 should be entered as 0.19)

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:30, lanakay2006
We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be
Answers: 1
image
Mathematics, 21.06.2019 17:30, ultimateapes
Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars
Answers: 2
image
Mathematics, 21.06.2019 18:30, cyndy50
Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap
Answers: 1
image
Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
You know the right answer?
The distribution of scores in a exam has a normal distribution with a mean of 82 and a standard devi...

Questions in other subjects:

Konu
English, 22.01.2021 18:40
Konu
Mathematics, 22.01.2021 18:40
Konu
Mathematics, 22.01.2021 18:40