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Find the z-scores that bound

Find the (two) z-scores that bound the middle 40% of the standard normal distribution. please show the work.
1. 1 answer
2. asked by tina
3. 1,415 views
Find the z-scores that bound the middle 55% of the standard normal distribution____ small value _____ larger value
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2. asked by Teresa
3. 758 views
Find the z-scores that bound the middle 55% of the standard normal distribution____ small value _____ larger value
1. 0 answers
2. asked by Teresa
3. 752 views
The z-scores that bound the middle 35 % under the standard normal curve are z = -a and z = a. Find the value of a.Write only a
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2. asked by Obi
3. 604 views
Find the average of all scores if there are:ten scores of 9 eight scores of 8 ten scores of 7 three scores of 6 Round to one
1. 2 answers
2. asked by JohnMark
3. 655 views
Use the Upper Bound theorem to find an integral upper bound and the Lower Bound Theorem to find an integral lower bound of the
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2. asked by Jesse
3. 665 views
find the -scores that bound the middle 82% of the area under the standard normal curve. Enter the answers in ascending order and
1. 1 answer
2. 21 views
For a normal distribution with a mean of m = 80 and a standard deviation of s = 20, find the proportion of the population
1. 1 answer
2. asked by Lyndon
3. 1,626 views
Find the indicated IQ scores The graph to the right depicts IQ scores of adults, and those scores are normally distributed with
1. 1 answer
2. 27 views
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7
1. 2 answers
2. asked by TAW
3. 908 views