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

Skeptical Science Search Results

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

Skeptical Science Search Results

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

Probability Cheat Sheet: Rules, Laws, Concepts, and Examples - StrataScratch

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

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

A normal score distribution has a mean amount of 56 and a standard deviation of 4. What percentage of score lies between 52 and 60? - Quora

The mean of a set of normally distributed test scores is 70 with a standard deviation of 8. What percent of the scores lie between 80 and 90? Answer to the nearest

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