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Published byDinah Ray Modified over 8 years ago

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Quantitative data

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mean median mode range average add all of the numbers and divide by the number of numbers you have the middle number when the numbers are in order the number(s) that show up the most often the difference between the largest and smallest numbers in your data set

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Create a box and whisker plot from the following set of numbers 18, 18, 20, 13, 17, 12, 15, 12, 17, 19, 17, 18, 18, 20, 11, 19 Step 1: arrange the numbers in order from least to greatest 11, 12, 12, 13, 15, 17, 17, 17, 18, 18, 18, 18, 19, 19, 20, 20 Step 2: find the median of your set of numbers 17.5 The lower half of the data The upper half of the data

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11, 12, 12, 13, 15, 17, 17, 17, 18, 18, 18, 18, 19, 19, 20, 20 17.5 list the 5 number summary of your data The smallest number (minimum) The median on the left (called the 1 st or lower quartile) The median The median on the right (called the 3 rd or upper quartile) The biggest number (maximum) 11 20 17.5 13 19 The interquartile range (IQR) is the difference between the third quartile and the first quartile Q 3 – Q 1 19 – 13 =6 Step 3: find the median of the lower half of the data Step 4: find the median of the upper half of the data

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Create a box and whisker plot from the following set of numbers 18, 18, 20, 13, 17, 12, 15, 12, 17, 19, 17, 18, 18, 20, 11, 19 Step 1: arrange the numbers in order from least to greatest Step 2: find the _______________ of your set of numbers

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11, 12, 12, 13, 15, 17, 17, 17, 18, 18, 18, 18, 19, 19, 20, 20 17.5 list the 5 number summary of your data The ________ number (________________) The _______ on the left (called the ___ or ____ quartile) The _______ The _______ on the right (called the ___ or _____ quartile) The ________ number (______________) The interquartile range (IQR) is the __________ between the ______ quartile and the _______ quartile ___ - ___ ____ – ____ = Step 3: find the ________ of the lower half of the data Step 4: find the ________ of the upper half of the data

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