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[DOCX File]Zoe's Dish - Home
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Label the values 1, 2, and 3 standard deviations above and below the mean using the stopwatch data. What percentage of the data is within two standard deviations of the mean? ... 6. What percentage of the runs will give the Delorean a speed greater than 85 mph? Show work & pictures. 7. What percentage of the runs will give the Delorean a speed ...
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[DOC File]Standard deviation - 清華大學物理學系
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At least 96% of the values are within 5 standard deviations from the mean. At least 97% of the values are within 6 standard deviations from the mean. At least 98% of the values are within 7 standard deviations from the mean. And in general: At least (1 − 1/k2) × 100% of the values are within k standard deviations from the mean. 4.
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[DOCX File]Department of Mathematics
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Suppose that the “abnormal range” is defined to be glucose levels which are 1.5 standard deviations above the mean or 1.5 standard deviations below the mean. What percentage of individuals would be classified “abnormal?” Solution: This is same as asking what percentage of standard normal distribution is below z=-1.5 or above z=1.5. For ...
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[DOC File]Test 1 Review
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This number is 5 + 10 + 6 + 8 + 3 = 32. To find the percentage of scores that fall within two standard deviations of the mean, we will take 32, divide it by 34 (since there are 34 total exam scores) and multiply that by 100 (to change from a decimal to a percent). ... This number is 5 + 10 + 6 + 8 + 3 + 2 = 34. To find the percentage of scores ...
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[DOC File]Columbia University in the City of New York
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In the standard normal table, we note that an upper-tail probability of 0.15 (found by looking in the middle of the table for a probability near 0.35) corresponds to about 1.04 standard deviations above the mean, and a probability of 0.25 corresponds to about 0.67 standard deviations above the mean. Therefore:
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[DOC File]Z-Score Practice Worksheet
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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 value)? C has the highest z - score. A score of 144 on a test with a mean of 128 and a standard deviation of 34..47. A score of 90 on a test with a mean of 86 and a standard deviation of 18. .22
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[DOC File]Review Chapter 5 and 6
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A physician claims that joggers’ maximal volume oxygen uptake is greater than the average of all adults. A sample of 15 joggers has a mean of 40.6 milliliters per kilogram (ml/kg) and a standard deviation of 6 ml/kg. If the average of all adults is 36.7 ml/kg, is there enough evidence to support the physician’s claim at Use the p-value method.
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[DOC File]Normal Curve Percentages
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In fact, for any number (or fraction) of standard deviations, we know exactly what percent of the data fall within that number of standard deviations of the mean. For example, consider the normal curve percentages in the table below. Given a number z of standard deviations, the table gives the percent of data values between the mean ( and ((z(.
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[DOC File]The mean cholesterol level in children is 175 mg/dl with ...
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A study of these bulbs indicates that their lives are normally distributed with a mean of 61 hours and a standard deviation of 6.3 hours. What is the percentage of bulbs that fail to last as long as the manufacturer claims? 0.3608 0.0029 0.0730 0.8584 246.9 0.0053 A forest products company claims that the amount of usable lumber in its ...
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6 standard deviations percentage