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box and whisker plot

carlie, kayla, Jackie, and brooke 5*

Kayla H

on 22 April 2010

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Transcript of box and whisker plot

Box and Whisker Plot Carlie, Kayla, Jackie,and Brooke 5th period This is a box and whisker plot THIS IS OUR BOX - AND- WHISKER PLOT
This Is What It Looks Like Step #1 Collect Data and order from least to greatest! Step # 2 Find the least and the greatest numbers. These will be your lower and upper quartiles. Step #3 Find the median of all the data. This will be your second quartile. Step # 4 Seperate the data into two groups on either side of the median. Step # 5 Find the median of the lower half of data. That will be your 1st quartile. Tip: If there are two numbers in the middle then you add up the tose two numbers and divide by 2. Step # 6 Then find the median of the upper half. That will be your 3rd quartile. Step # 7 Draw a number line and mark the point listed on the previos steps. The upper quartile is the 1st point.
The 1st quartile is the second point.
The meadian is the cent or third point.
The 3rd quartile is the forth point.
The lower quartile is the 5th or last point plotted. Step# 8 Step # 9 Draw a box from the 1st quartile to the 3rd quartile. Lenght is important but width is conventional. Draw a line or whisker from the main box to the largest or upper quartile number.
The draw a line or whisker form the main box to the smallest or lower quartile number. Step # 10 Draw a line from the top of the box to the bottom through the median.
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