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We can calculate IQR by first finding the overall median, and that's Q2. You then find the median of the left side, which is Q1. Do the same to the right side, by finding the median. That's Q3. Then you have to subtract Q1 from Q3, and that's the IQR. -Soren

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We can calculate IQR by first finding the overall median, and that's Q2. You then find the median of the left side, which is Q1. Do the same to the right side, by finding the median. That's Q3. Then you have to subtract Q1 from Q3, and that's the IQR. -Soren

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IQR can still be accurate even if there is an outlier

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IQR can still be accurate even if there is an outlier

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The purpose of IQR is to find the medians

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The purpose of IQR is to find the medians

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That is when we learn range, median, mode, etc.

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It tells us what the middle 50% is and helps us know if the graph is skewed left or right or if it is pretty even throughout the whole graph.

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It tells us what the middle 50% is and helps us know if the graph is skewed left or right or if it is pretty even throughout the whole graph.

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-Seth

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It can tell us if the range can increase a big portion or stay true to the regular range.

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2. find the median of the lower half of the data
3. Find the median of the upper half  of the data
4. Subtract the median of the lower half(Q1) from the upper half median(Q3).
5. YOU HAVE THE IQR- Isra

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First you find the median then you. Find the median of Q1 and Q3. Then you subtract.

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First you find the median then you. Find the median of Q1 and Q3. Then you subtract.

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understand the shape of the data mainly te middle 50% presencent

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You find the median of your data and then the median of each of the halfs.

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You find the median of your data and then the median of each of the halfs.

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Dishita

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IQR can tell us the shape of the data, even when normal range can't.

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Jack Cross

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simple range only tells the basics

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IQR is more useful than the normal range because it's much harder to change and can tell us the shape of the data, like which way it's skewed. -Soren

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IQR is more useful than the normal range because it's much harder to change and can tell us the shape of the data, like which way it's skewed. -Soren

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The interquartile range informs us whether we have a mild or strong outliner.

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You find the median of the full sequence of numbers (Q2), then you find the median of the lower-half (Q1) and higher-half (Q3) and the maximum is Q4.

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The IQR tells us the range of the middle 50% of the data

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The IQR tells us the range of the middle 50% of the data

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because it could be to much at a time

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We can easily connect with the things we learn in 6th grade

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We can easily connect with the things we learn in 6th grade

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Dishita

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We wait to learn IQR until sixth grade because we need to understand median and mean before we start IQR.

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We wait to learn it because in 6th grade we learn and hopefully master decimals, fractions and percents. 

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We wait to learn it because in 6th grade we learn and hopefully master decimals, fractions and percents. 

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Seth

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The purpose of IQR is to give a more reliable way to calculate range

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The purpose of IQR is to give a more reliable way to calculate range

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the purpose of IQR is to find medians and find a more reliable range.

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IQR is better than normal range because it shows the range without it being totally influenced by the outlier, and it shows you the shape of the data unlike normal range.-Isra

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IQR is better than normal range because it shows the range without it being totally influenced by the outlier, and it shows you the shape of the data unlike normal range.-Isra

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To calculate IQR, we find the mean (Q2), then we calculate the means of the lower and upper halves, then we subtract Q1 from Q3

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To calculate IQR, we find the mean (Q2), then we calculate the means of the lower and upper halves, then we subtract Q1 from Q3

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find the first quartile and the third quartile and subtract: Q3-Q1

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Because it is more complex, and everyone knows that more complex things are better.

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Because it is more complex, and everyone knows that more complex things are better.

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Jack Cross

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the IQR tells us the range of the middle 50 percent %

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it is less rough and more exact

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we wait to learn it because it requires full completion of knowing fractions,decimals, and percents.

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The purpose is to find the interquartile range to find the range of the quartiles.

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The purpose is to find the interquartile range to find the range of the quartiles.