How to find lower and upper quartile
[DOC File]MATHEMATIC WORKSHEET FOR X Grade
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Q1 = the lower quartile. Q2 = median. Q3 = the upper quartile. We can estimate Q1, Q2, Q3 from the cumulative frequency and calculate them with the formula. Median corresponds to the 50th percentile, Q1 corresponds to the 25th percentile, Q3 corresponds to the 75th, i.e. Q2 = P50 , Q1 = P25 , Q3 = P75 . By Formula (The Median = median
[DOC File]Here is some data
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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.
[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
[DOC File]Mean, Median, Box & Whisker Plots
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(Lower Quartile or Quartile 1) Find the Median of the upper set of numbers. (Upper Quartile or Quartile 3) Find the Smallest number. (Lower Extreme) Find the Largest number. (Upper Extreme) Plot all of the above points on the number line. Draw a box around the Lower and Upper Quartiles and Whiskers out to the Extremes.
[DOC File]Quiz 1
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Subtract the value of the upper quartile from the lower quartile. Divide the data set into four equal parts and find the range between each of the resulting quarters. Suppose you look at two boxplots comparing the weights of male cats vs. female cats, and you find that the box for the males is much wider than the box for the females.
[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 ...
[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.
[DOC File]Math 1: Box and Whisker Plots
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Looking at the plot above, you can easily find the smallest value, the first quartile (or lower quartile), the median, the third quartile (or the upper quartile), and the largest value. Remember to put the values in order from least to greatest FIRST!
[DOC File]Weebly
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Find the median. 3) Find the lower quartile (Q1): the median of all values below the median. 4) Find the upper quartile (Q3): the median of all values above the median. 5) Subtract the lower quartile (Q1) from the upper quartile (Q3). Examples: WHY. The interquartile range tells you how spread out the middle 50% of the data is.
[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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