Quartile and interquartile range worksheets
[DOC File]Introduction - Pearson Education
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The interquartile range and quartile deviation. This measure is found in the same way as ungrouped data, i.e. Interquartile range = Q3 – Q1. Since cell G13 contains the value pertaining to Q3 and cell G14 contains the lower quartile value, the interquartile range is found: In cell G15: =G13-G14
[DOC File]TopicName Test - Jacaranda
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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
[DOCX File]Type Grade Here - Henry County School District
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Interquartile Range. A measure of variation in a set of numerical data. The interquartile range is the distance between the first and third quartiles of the data set. Example: For the data set {1, 3, 6, 7, 10, 12, 14, 15, 22, 120}, the interquartile range is 15 – 6 = 9.
[DOC File]Box and Whisker Plot Performance Assessment
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For the first question you choose, in which quartile is your data point located? For the second question you choose, in which quartile is your data point located? ... Interquartile Range g. Mode k. Standard deviation Mean h. Range l. 49 50 . Title: Box and Whisker Plot Performance Assessment Author: Macgregg Last modified by ...
[DOCX File]huron.k12.sd.us
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7.A.1.1 Students are able to write and evaluate algebraic expressions using the set of whole numbers
[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
[DOC File]TopicName Test - Jacaranda
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lower quartile. upper quartile. interquartile range. median = lower quartile = upper quartile = interquartile range = 49.5 – 21 = 28.5. Draw a box-and-whisker plot of the data displayed in the stem-and-leaf plot in question . 7. Write a five-number summary for the following test percentages. 21%, 83%, 47%, 62%, 94%, 52%, 71%. Arrange in order
[DOC File]1 - tandrageemaths
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4 The upper quartile using the 3n th value. 4 The interquartile range. Remember…. The method of constructing a cumulative frequency graph enables you to find the median. The advantage of finding the interquartile range is that it eliminates extreme values and …
STATISTICS: Sect
(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 ALL values that are above the median. Note: NEVER include the actual median in the data when finding the quartiles. Find the 5-number summary and draw the boxplot for each data set. 1.
[DOC File]Mean, Median, Box & Whisker Plots
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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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