What fraction score lies between 80 and 90, if the normal distribution mean is 70 and the standard deviation is 10? - Quora
Por un escritor de hombre misterioso
Descripción
Answer (1 of 3): Convert 80 and 90 to z-scores and look up the z-scores in the Normal Distribution table in the back of your textbook. You want the area between them, so you will need to subtract the area between z=0 and the z score you get from converting 80 to a z-score from the area between z=
The mean mark on a math exam was 70%, with a standard deviation of 10%. If 200 students wrote the exam, how many would be expected to score between 60% and 80%? - Quora
bliss Qualia Computing
SOLVED: Scores on an exam are normally distributed with a mean of 65 and at standard deviation of 9. Find the percentage of scores: a) Less than 54 b) At least 80
Quora Answers 151-200
Tina's score on her midterm exam was at the 50th percentile. The grades were normally distributed. The exam average was 59 and the standard deviation was 1.4. What was Tina's score on
On a test, mean score was 70 and the standard deviation of the scores was 15. If there were 1000 test takers, how many people scored between 60 and 75? - Quora
If a normally distributed group of test scores has a mean of 70 and a standard deviation of 12, then what is the percentage of scores that will fall below 50? - Quora
If test scores are normally distributed with a mean of 80 and a standard deviation of 10, what is the probability that a student scored 76? - Quora
Peter Thiel CS183 PDF
Limits to Green Energy Are Becoming Much Clearer
de
por adulto (el precio varía según el tamaño del grupo)