Standard deviation practice questions

    • [DOC File]Variance and Standard Deviation Questions - Web Maths

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      Find the mean and the standard deviation of the combined set of 25 numbers. 5. The number of members (m) in six scout groups was recorded. The summary statistics for these data are: Σm = 150 Σm2 = 3846. a. Work out the mean number of members in a scout group. b. Work out the standard deviation of the number of members in the scout groups. 6.

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    • [DOC File]AP Statistics

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      Chapters 1-5 Practice Test Name_____ Part I: Multiple Choice (Questions 1-10) - Circle the answer of your choice. Mr. Garcia’s strings class had a standard deviation of 2.4 on a performance exam, while Mr. Hart’s percussion class had a standard deviation of 1.2 on the their performance exam using the same criteria.

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    • [DOC File]STAT 200 FINAL PRACTICE TEST - Colorado Mesa University

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      The individual practice tests are good too. #3. These questions are good too. You might consider just reading the questions and describing how you would do the problem and then see if the answer key agrees. ... If the mean lifespan is 1000 hours with a standard deviation of 80 hours, what is the probability that a random sample of 4 bulbs will ...

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    • [DOCX File]AP BIOLOGY--LAWNDALE HS - Home

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      AP Biology Standard Deviation Practice worksheet 1. The formula for the standard deviation, S(SD), is on the right: Identify what each of the following parts of the formula mean by explaining it in words.

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    • [DOCX File]CALCULATING STANDARD DEVIATION WORKSHEET

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      The smaller the standard deviation, the closer the scores are on average to the mean. 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 ...

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    • [DOCX File]Georgetown Independent School District / GISD Home

      https://info.5y1.org/standard-deviation-practice-questions_1_20a65a.html

      2. A booklet has 12 pages with the following numbers of words:271, 354, 296, 301, 333, 326, 285, 298, 327, 316, 287 and 314What is the standard deviation number of words per page?

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    • [DOC File]Z-Score Practice Worksheet

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      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. A score of 18 on a test with a mean of 15 and a standard deviation of 5. .6

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