What fraction score lies between 80 and 90, if the normal distribution mean is 70 and the standard deviation is 10? - Quora

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=

What fraction score lies between 80 and 90, if the normal distribution mean is 70 and the standard deviation is 10? - Quora

For a normal distribution with mean of 70 and standard deviation of 10 what is the minimum score necessary to be the top 60% of the distribution? - Quora

If the scores for a test have a mean of 100 and a standard deviation of 15, what is the percentage of scores that will fall below 112? Assuming a normal distribution. - Quora

If a test is normally distributed with a mean of 90 and a standard deviation of 10, what proportion of the scores is above 110 and below 85? - Quora

The Journal of Science Extension Research – Vol. 2, 2023 by Science curriculum team – NSW Department of Education - Issuu

What fraction score lies between 80 and 90, if the normal distribution mean is 70 and the standard deviation is 10? - Quora

For a normal distribution with mean of 70 and standard deviation of 10 what is the minimum score necessary to be the top 60% of the distribution? - Quora

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

What fraction score lies between 80 and 90, if the normal distribution mean is 70 and the standard deviation is 10? - Quora

What fraction score lies between 80 and 90, if the normal distribution mean is 70 and the standard deviation is 10? - Quora