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[DOC File]CALCULATING STANDARD DEVIATION WORKSHEET
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Sep 26, 2015 · When the standard deviation is large, the scores are more widely spread on average from the mean. The . standard deviation. is calculated as the . average distance from the mean. Practice Problem #1: The junior high basketball team played ten games. Find the standard deviation for the number of baskets scored by the team for the ten games: 8, 4 ...
standard deviation worksheet answer key

[DOCX File]CALCULATING STANDARD DEVIATION WORKSHEET
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When the standard deviation is large, the scores are more widely spread out on average from the mean. The standard deviation is calculated to find the average distance from the mean. Practice Problem #1: Calculate the standard deviation of the following test data by hand. Use the chart below to …
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[DOCX File]Purdue University - Department of Statistics
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Assume that the standard deviation is known to be $220. Find a 99% confidence interval for the mean monthly rent for unfurnished one-bedroom apartments available for rent in this community. ̅ x - z * s n , ̅ x + z * s n = 1400 -2.576 220 32 , 1400 +2.576 220 32 =(1299.817, 1500.183)
calculating standard deviation worksheet key

[DOCX File]AP BIOLOGY--LAWNDALE HS - Home
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If your answers do not match your predictions, make sure to go back and explain how you can predict the ranking (i.e. smallest and largest) standard deviations from the data that are given. 7. Two different AP Biology instructors compute the means and standard errors for the first exam score for their classes.
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[DOC File]Worksheet on Normal Distribution
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A line for tickets to a local concert had an average (mean) waiting time of 20 minutes with a standard deviation of 4 minutes. If 2000 ticket buyers were in line, how many of them would expect to wait for more than 30 minutes? 5. On a recent math test, the mean score was 75 and the standard deviation was 5. Mike scored a 93.
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STATISTICS: Sect
Standard Deviation. For a set of data points, the standard deviation measures spread by looking at how far the observations are from their mean. For samples, standard deviation is denoted by s. For instance, here are some examples. Each graph has a spread of 0 …
standard deviation worksheet doc

[DOCX File]Worksheet on Normal Distribution Name:____Answer Key
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The standard deviation is 2000 km. 68% of all tires will have a life between 28,000 km and 32,000 km. 95% of all tires will have a life between 24,000 km and 34,000 km. What percent of the tires will have a life that exceeds 26,000 km? .977. If a company purchased 2000 tires, how many tires would you expect to last more than 28 000 km? ...
statistics standard deviation worksheet

[DOC File]Z-Score Practice Worksheet
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If the standard deviation is 70 wpm, find the z-scores associated with each of the following reading speeds. a) 320 wpm b) 475 wpm c) 610 wpm. 4. SAT vs. ACT. Eleanor scores 680 on the SAT mathematics test. The distribution of SAT scores is symmetric and single peaked, with a mean of 500 and standard deviation of 100.
calculating standard deviation answer key

[DOC File]Z-Score Practice Worksheet
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Women’s heights have a mean of 63.6 in. and a standard deviation of 2.5 inches. Find the z score corresponding to a woman with a height of 70 inches and determine whether the height is unusual. Z = (70 – 63.6)/2.5 = 2.56. Three students take equivalent stress tests. Which is the highest relative score (meaning which has the largest z score ...
standard deviation worksheet answer key

Standard deviation worksheets and answers