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[DOC File]Sample Test Questions -- Test 1 - University of Florida
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What is the IQR (Interquartile Range) of this data? a) 10. b) 13. c) 21. d) 62. 9. What is the standard deviation of this data? a) 12.78. b) 44. c) 93. d) 163.33. 10. If z is a standard normal random variable, what is the variance of z? a) 0. b) 1. c) 4. d) It depends on what kind of standard normal variable you have A particular type of 4th ...
what does interquartile range mean

[DOCX File]MRS RISINGER - Home
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Use median and interquartile range, since the distribution is skewed, there is a strong outlier, and these measures are resistant to outliers. Find the five-number summary for these data.
what is interquartile range in math

[DOCX File]Median and IQR
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identify interquartile range (IQR) as measure of spread related to the median; recognize that many different data distributions can have the same summary measures. Dot plots display data in a way that makes it easier to identify the median of a set of data, since they show how data clusters.
what does the interquartile range represent

[DOCX File]Chapter 03 - Descriptive Statistics: Numerical Measures
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The interquartile range is the difference between the _____. ... _____ can be used to determine the percentage of data values that must be within one, two, and three standard deviations of the mean for data having a bell-shaped distribution. ...
formula for interquartile range

[DOC File]Notes: Finding Quartiles & Interquartile range in a Data Set
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Step 5: Find the interquartile range by subtracting 3rd and 1st quartile 12-2 = 10 IR= 10 Now you try: Data Set - 5, 8, 12, 14, 1, 0, 19, 6, 17, 18 Step 1: Put the numbers in order from least to greatest
interquartile range vs median

[DOC File]Estimating mean and standard deviation from the sample ...
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We sometimes want to include in a meta-analysis data from studies where results are presented as medians and ranges or interquartile ranges rather than as means and standard deviations ...
range versus interquartile

Interquartile range of the data