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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 ...
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[DOC File]Here is some data
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1. Find the median, lower and upper quartile. 2. Find the range of the data. 3. Draw a straight line, and a reference line, which goes from the smallest to the largest number. 4. Draw three vertical lines: one at the lower quartile, one at the median, and one at the upper quartile. 5. Turn those three lines into a box. Example:
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[DOC File]Topic of 5:
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To find the lower quartile, one finds the median of those observations falling below the location of the actual median. (When there is an odd number of observations, one does not include the actual median in either group.) Find the lower quartile and upper quartile for Raleigh.
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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
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[DOC File]Quartiles:
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upper quartile (Q3) is the median of the upper half of the data set. The . interquartile range (IQR) is the spread of the middle 50% of the data values. So: The interquartile range is a more useful measure of spread than the range as it describes the middle 50% of the data values. Example. Find the median, lower quartile, upper quartile and ...
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[DOC File]Algebra I–Part 2
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The difference between the upper quartile and the lower quartile is called the inter-quartile range. This provides another measure of the variation in the data. Teacher note: There are various methods of calculating the upper and lower quartiles for a set of data. The Department of Education will NOT use the median of a data set when ...
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Home - Boone County Schools
Find the lower quartile and the upper quartile. Step 3. Subtract the lower quartile from the upper quartile. This is the (IQR). Date . Number Lines and Dot Plots (Line Plots) Learning Targets: I am able to create and read information off of dot or line plots. Key Terms. Number Line:
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[DOCX File]Mathematics Instructional Plan - Grade 8
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To divide the data into quarters (finding the upper and lower quartiles), you then find the medians of these two halves. Note: If you have an even number of values (meaning the first median was the average of the two middle values), then you include the middle values in your submedian computations.
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[DOC File]Algebra I: Worksheet 9-6
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Algebra I: Worksheet Quartiles. For each set of data, find the median, lower quartile (Q1), upper quartile (Q3), inner quartile range and five number summary.
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How to find upper and lower quartile