Upper lower quartile and interquartile range
[DOCX File]Median and IQR
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Median and Interquartile RangeName Student ActivityClass . ... The difference between the upper quartile and the lower quartile is called the . interquartile range (IQR). c.Find the interquartile range (IQR). Activity . 4 [Page 2.4] 1.Identify the following as true or false and give a reason. Use the activity to help your thinking.
[DOC File]Topic of 5:
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Find the lower quartile and upper quartile for Raleigh. Calculate the interquartile range (IQR) of Raleigh’s distribution by determining the difference between the quartiles. Is the IQR of Raleigh’s monthly temperatures greater or less than the IQR for San Francisco’s monthly …
[DOC File]TopicName Test
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Find the interquartile range. What was the highest mark in the class? Median = 72. Lower quartile = 63 Upper quartile = 77 Interquartile range = 77 – 63 = 14. Top mark = 92. 4 The figures below show the number of vehicles that pass through a particular intersection between 4:00 pm and 5:00 pm over a two-week period. 88 92 114 82 94 83 84
[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
[DOCX File]8.12c Quick Check
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the lower and upper quartile and the lower and upper extremes of a boxplot A student may benefit from a visual representation of interquartile range by referring to the Grade 8 Word Wall Cards.
[DOC File]Name:
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The following conditions for the Interquartile Range must be met: Data is ordered from Least to Greatest. All work must be shown in a presentable way. The Upper Quartile (UQ), Lower Quartile (LQ) and Interquartile Range (IQR) must be clearly labeled and presented. All work and results must be accurate and cogent.
[DOC File]Percentiles & Quartiles:
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This range tells us the spread of the middle half of the data. Examples: For each of the following data sets, calculate the median rank, median, 1st quartile, 3rd quartile, and interquartile range: 1) 100 97 106 87 94 102 101 99 86 78 96 56 80 106 111 87 88 80 96 98 96 91. 2) 78 89 56 67 45 67 89 78 55 44 78 55 34 90 66 54 78 97 67 89 76 78 89 ...
[DOC File]Quartiles:
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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 interquartile range of the following data set of scores:
Median and IQR
Median and Interquartile Range is the second lesson in a series of lessons that investigates the statistical process. In this lesson students are introduced to the median and, by taking the median of each half of the data, to quartiles and the interquartile range.
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