How do you find quartile 1
[DOC File]Math 1: Box and Whisker Plots
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Exercise 1. Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows: Find the sample mean, . Find the sample standard deviation, s. Construct a histogram of the data. Complete the columns of the chart. Find the first quartile. Find the median. Find the third quartile.
[DOC File]PROBABILITY TOPICS: HOMEWORK
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Do not include the outliers as the smallest or largest value. Instead, mark them as points on the graph and then use the next highest or the next lowest to start or end the whiskers of the plot. Write the data in numerical order and find the first quartile, the median, the third quartile…
[DOC File]Introduction
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The Excel command for the first quartile is, as you can see, = QUARTILE(range, 1). The third quartile replaces the "1" with a "3": =QUARTILE(range, 3). In the modified box plot, the lower whisker extends down to 1.5 * IQR below the 1st quartile, and the upper whisker extends up to 1.5 * IQR above the 3rd quartile.
[DOCX File]Describing and Interpreting Data
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How do you use Table A to find the area under the standard Normal curve to the right of a given z-value? Draw a sketch. How do you use Table A to find the area under the standard Normal curve between two given z-values? Draw a sketch. Summarize the steps on how to solve problems involving Normal distributions as outlined on page 120.
[DOC File]The Practice of Statistics - AP STATISTICS - AP Statistics
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Change the list and find the new mean, median, and range of the list you modified. The sketch the new box-plot at the right as well. Mean: _____ Median: _____ Range: _____ Quartile 1: _____Quartile 3: _____ 12. Describe how the graph changes from data set one to the modified data. What can you easily tell from the graph?
[DOC File]Notes: Finding Quartiles & Interquartile range in a Data Set
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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 …
Quartile Calculator | Interquartile Range Calculator
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- …
[DOC File]2
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Exercise 1. Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows: Find the sample mean, . Find the sample standard deviation, s. Construct a histogram of the data. Complete the columns of the chart. Find the first quartile. Find the median. Find the third quartile.
[DOC File]Mean, Median, Box & Whisker Plots
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As with ungrouped data, the first step in calculating the quartiles (the median being the second quartile or Q2) is to find the quartile positions using the following formulae: We have found that it is easier to use decimal values rather than fractions in Excel, so we can find the quartile position as follows: Find the quartile positions.
[DOC File]PROBABILITY TOPICS: HOMEWORK
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If you are the fourth tallest person in a group of 20, you are taller than 16 people and represent the eightieth percentile. Quartiles Each quartile contains 25% of the total observations based on data that is ordered from smallest to largest.
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