Mathematics, 14.12.2021 01:00 fluffyskunk302
21. STATISTICS The most familiar statistical measure is the arithmetic mean, or average. A second
important statistical measure is the standard deviation, which is a measure of how far the data
are from the mean. For example, the mean score on the Wechsler IQ test is 100 and the
standard deviation is 15. This means that people within one standard deviation of the mean
have IQ scores that are 15 points higher or lower than the mean.
a. One year, the mean mathematics score on the ACT test was 20.9 with a standard deviation of
5.3. Write an absolute value equation to find the maximum and minimum scores within one
standard deviation of the mean.
b. What is the range of ACT mathematics scores within one standard deviation of the mean?
Answers: 2
Mathematics, 21.06.2019 21:00
Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.
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Maddie's rectangular kitchen has an area of 10 square yards and a length of 3 3/4 yards.how many yards wide is maddie's kitchen?
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Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16
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Write the equation of the circle centered at (10,-2) with radius 2.
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21. STATISTICS The most familiar statistical measure is the arithmetic mean, or average. A second...
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