Finding first and third quartiles
[DOC File]Measures of Central Tendency, or more simply measures of ...
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The third quartile is the median of the observations whose position in the ordered list is to the right of the location of the overall median. Here are examples that show how the rules for the quartiles work for both odd and even numbers of observations. Example . Finding the quartiles: odd number of observations.
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third quartiles. The quartiles are the medians of the lower and upper halves of the data set. If there are an odd number of data values, do not include the median in either half. ... Then draw a box from the first quartile to the third quartile with a line segment through the median. Draw whiskers from the box to the minimum and maximum. IRQ ...
[DOC File]Term
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First and Third Quartiles Interquartile . Range Subtract . Third Quartile – First Quartile = IQR. Outlier Mean 5 + 4 + 2 + 6 + 3 = 20 . The Mean is 4. Mean Absolute Deviation (MAD) Steps: Find the Mean. Calculate the absolute value of the difference between each data value and the mean. Determine the average of the differences in step 2.
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20 Finding the Quartiles . Find the median of all of the observations. First Quartile = Q1 = median of observations that fall below the median. Third Quartile = Q3 = median of observations that fall above the median. Notes When the number of observations is odd, the middle observation is the median.
[DOC File]Quantitative Techniques in Business
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The first or lower quartile, Q1, is equal to the 25% percentile, P25. The second or mid-quartile, Q2, is equal to the 50% percentile, P50, which is also the median, M. The third or upper quartile, Q3, is equal to the 75% percentile, P75. We use these quartiles to help us …
[DOC File]Lab #3 – Normal Distribution & Confidence Intervals
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a) Find the mean, standard deviation, minimum, maximum, mode, median, first and third . quartiles for the data. In your report refer to these summary statistics and the charts . asked for in the next question and describe the data's characteristics. Discuss how the . data sets are similar and different and what type of calculations would be ...
STATISTICS: Sect
Finding the quartiles is more work: (1) First, make sure numbers are in increasing order. (2) Locate the median (or solve for the median) (3) To find Q1 (first quartile): Find the median of ALL values that are below the median. (4) To find Q3 (third quartile): Find the median of …
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First and Third Quartiles Interquartile . Range Subtract . Third Quartile – First Quartile = IQR. Outlier Mean 5 + 4 + 2 + 6 + 3 = 20 . The Mean is 4. Mean Absolute Deviation (MAD) Steps: Find the Mean. Calculate the absolute value of the difference between each data value and the mean. Determine the average of the differences in step 2.
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Feb 10, 2012 · Find the median and the first and third quartiles for the number of CD’s owned by senior citizens. Develop a box plot for the information. b. Find the median and the first and third quartiles for the number of CD’s owned by young adults. Develop a box plot for the information. c. Compare the number of CD’s owned by the two groups. 2.
[DOCX File]Mr. Leos 6th grade
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a way to visually show data by using the median (middle number), first and third quartiles, minimum (smallest number) and maximum (largest number) ... a way to measure data by putting all of the numbers in order and then finding the middle number. www.mathisfun.com ... quartiles. the median, first and 3rd quartile make four equal parts to a box ...
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