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# Box and whisker pp

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### Box and whisker pp

1. 1. SpongeFind the median and mean of the followingdata set. 25, 5, 10, 6 , 4, 4
2. 2. Activator Cat Box and Whisker Plot Using your imagination, how are these pictures similar? Use the name of the graph as a hint.
3. 3. BOX AND WHISKER PLOT
4. 4. Box and Whisker Plot Draw a hand on your paper palm facing upward.
5. 5. Box and Whisker Plot Draw a hand on your paper palm facing upward. On each finger type the following words: Lower Extreme 1st Quartile Median 3rd Quartile Upper Extreme
6. 6. Box and Whisker Plot
7. 7. Lower Extreme (Minimum)The lower extreme is thenumber with the lowest value inthe data set.Ex. 2, 4, 6, 8, 10 , 12,142 has the lowest value,therefore, it is the lowerextreme.
8. 8. 1st Quartile (Lower Quartile)The 1st quartile is where the 1st 25% ofthe data falls.There are several steps to find the firstquartile.1. Find the median of the data set.2. Take all of the numbers to the left of the median and create a new set. (Do not include the median.)3. Find the median of the new set.Ex. 2, 4, 6, 8, 10 , 12,14The median is 8.I will create a new set using all of thenumbers to the left of 8 (2, 4, 6).I will now find the median of the newset.The median of (2, 4, 6) is 4. Therefore,the 1st quartile is 4.
9. 9. MedianThe median is the middle of the dataset.How do we find the median?Ex. 2, 4, 6, 8, 10 , 12,14The median is 8.
10. 10. 3rd Quartile( Upper Quartile)The 3rd quartile is where the last 25% ofthe data falls.There are several steps to find the 3rdquartile.1. Find the median of the data set.2. Take all of the numbers to the right of the median and create a new set. (Do not include the median.)3. Find the median of the new set.Ex. 2, 4, 6, 8, 10 , 12,14The median is 8.I will create a new set using all of thenumbers to the right of 8 (10, 12,14).I will now find the median of the newset.The median of (10, 12, 14) is 12.Therefore, the 3rd quartile is 12.
11. 11. Upper Extreme (Maximum)The upper extreme is thenumber with the highest valuein the data set.Ex. 2, 4, 6, 8, 10 , 12,1414 has the highest value,therefore, it is the upperextreme.
12. 12. Box and Whisker Plot
13. 13. Interquartile RangeThe interquartile range is thedistance from the 1st quartile tothe 3rd quartile.We find the interquartile rangeby subtracting the 1st quartilefrom the 3rd quartile.Ex.2, 4, 6, 8, 10, 12, 14As previously solved, the 1stquartile is 4 and the 3rd quartileis 12.12 – 4 = 8. Therefore theinterquartile range is 8.
14. 14. Let’s Practice
15. 15. Closing Exit TicketYou can write on the paper.Please turn in once you have completedthe exit ticket.