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[DOC File]Mean, Median, Box & Whisker Plots
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What is the 3rd Quartile Value? ____ What is the inter-quartile range? ____ If the mean of a set of 12 number is 13, then the sum of the numbers is: _____ 7. Statistics Day 1 Homwork: Show your Work for Full Credit!!! 1. 4. 2. 5. 3. 6. 7. 12. 9. 8. 10. 25 21 17 12 15 9 The times in minutes for each of Curt’s phone calls this week are shown in ...
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[DOC File]LAB 3
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Use the z value for the 1st quartile ( from step 13 ) and the second formula in step 18 to calculate the 1st quartile for the distribution of SAT verbal scores _____ . Repeat step 23 to find the 3rd quartile for the SAT verbal scores _____ . Close the normal template. Save your file. Updated on 9-18-08
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[DOCX File]Henry County Schools / Overview
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Find the 3rd quartile (Q 3) _____ Subtract the 1st quartile from the 3rd quartile _____ _____ is the average of how much the data points in a set deviate or vary from the mean. Since distance is always positive, you must take the absolute value of each deviation. Example: Look …
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[DOC File]6A: Characterizing a Data Distribution
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The 1st quartile is also called the lower quartile, and the 3rd quartile is also called the upper quartile. In a large data set, 25% of the numbers lie between . the lowest value and the 1st quartile, 25% of the numbers lie between . the 1st quartile and the 2nd quartile, 25% of the numbers lie between. the 2nd quartile and the 3rd quartile, and
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[DOC File]Class Time:
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1st quartile = _____ 3rd quartile = _____ median = _____ Organize the Data. Construct a histogram of the empirical data. Construct a histogram of the empirical data. Make 5 bars. Make 8 bars. Describe the Data: Describe the shape of each graph. Use 2 – 3 complete sentences. (Keep it simple.
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[DOC File]Percentiles & Quartiles:
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The third quartile Q3 is the median of the upper half of the data; that is, it is the median of the data falling above Q2 (and not including Q2). To help you find the median easily use the median rank for n pieces of data, Median Rank = _n + 1_ 2 If the rank is a whole number, the median is the value in that position.
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[DOC File]2
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The third quartile replaces the "1" with a "3": =QUARTILE(range, 3). In the modified box plot, the lower whisker extends down to 1.5 * IQR below the 1st quartile, and the upper whisker extends up to 1.5 * IQR above the 3rd quartile.
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[DOC File]Notes: Finding Quartiles & Interquartile range in a Data Set
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Step 3: Find the 1st or lower Quartile (median of the lower half) 4, 6, 9 so.. 1st Q = 6. Step 4: Find the 3rd or upper quartile (median of the upper half) 17, 19, 21 3rd Q = 19 . Step 5: Find the interquartile range by subtracting 3rd and 1st quartile 19-6 = 13 IR = 13 . Now you try: Data Set- 10, 15, 9, 27, 3, 5, 18
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[DOC File]Lab #3 – Normal Distribution & Confidence Intervals
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b) Calculate the IQR (3rd Quartile ( 1st Quartile) and discuss whether there are any outliers . in either data set based upon the criteria that are beyond 1.5IQR below Q1 or 1.5IQR . above Q3. c) For each of the data sets using methods of normal probability find the values that
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How to find the 3rd quartile