Mathematics, 04.11.2020 01:30, mads000
Raw scores on a certain standardized test one year were normally distributed with a mean of 156 and a standard deviation of 23. If 48,592 students took the test, about how many of the students scored less than 96?
Answers: 1
Mathematics, 21.06.2019 21:00, samiiegarciia
Gabriel determined that his total cost would be represented by 2.5x + 2y ā 2. his sister states that the expression should be x + x + 0.5x + y + y ā 2. who is correct? explain.
Answers: 2
Mathematics, 21.06.2019 22:30, thelonewolf5020
Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event aĆ¢ā Āµect the mean and standard deviation of the wait time until success?
Answers: 3
Raw scores on a certain standardized test one year were normally distributed with a mean of 156 and...
History, 19.09.2019 20:30