1. Warm Up R R R R R R R R R R R L R R R R R R R R R R R R R R R A
Students were asked, “Are you right-handed, left-handed, or ambidextrous?” The responses of the 50 randomly selected Canadian students are show below.
Make an appropriate graph to display these data.
Over 10,000 Canadian high school students too k the survey. What percent of this population would you estimate is left-handed? Justify your answer.
R R R R R R R R R R R L R R
R R R R R R R R R R R R R A
R R R R A R R L R R R R L A
R R R R R R R R

2. Get Out Your Projects! You must turn in the following.
The Computation Project
The Compare & Contrast Paper
The Computation Rubric
The C&C Rubric

3. Discuss Your Project

4. 5-Number (5#) Summary
The five-number summary of a distribution consists of the smallest data point, the first quartile, the median, the third quartile, and the largest data point.

5. Number of Text Messages
First we must put the data in order from smallest to largest.
***Sample Size:

6. #3 Median
The median is the midpoint of the distribution that has been ordered from smallest to largest, such that half of the data points are smaller and half of the data points are larger.
Notation: _________

7. #1 Minimum
The minimum is the smallest data point in the data set. Do not exclude any outliers.
Notation: ____________

8. #5 Maximum
The maximum is the largest data point in the data set. Do not exclude any outliers.
Notation: ____________

9. #2 Lower Quartile
The median for the first 50% of the ordered set is the lower/first quartile.
Notation: ___________

10. What does Q1 Mean?
_____________of the people in this room sent less than ___________ text messages.
_____________ of the people in this room sent more than __________ text messages.

11. #4 Upper Quartile
The median for the second 50% of the ordered set is the upper/third quartile.
Notation: ___________

12. What does Q3 Mean?
_____________of the people in this room sent less than ___________ text messages.
_____________ of the people in this room sent more than __________ text messages.

13. This is what the quartiles are actually doing with the data set.
Data Display
This is what the quartiles are actually doing with the data set.

14. 𝐼𝑄𝑅= 𝑄 3 − 𝑄 1 Interquartile Range
The interquartile range is the range of data between the lower quartile and the upper quartile
Notation: __________
𝐼𝑄𝑅= 𝑄 3 − 𝑄 1

15. Number of Text Messages
First we must put the data in order from smallest to largest.
***Sample Size:

16. #3 Median
The way we deal with the median in a data set with an ODD sample size is different.
Once we find the median, it cannot be included in another portion (Q1 or Q3).

17. Find the 5# Summary for the following data set. n = _____
Number of Tattoos
Find the 5# Summary for the following data set.
n = _____

18. Number of Starbucks Coffees
Find the 5# Summary for the following data set.
n = _____

19. Try It On Your Own
One group has an ODD sample size and one group has an EVEN sample size.

20. On a 3x5 Card write what 5 values the 5# Summary is made up of.
Ticket Out The Door
On a 3x5 Card write what
5 values the 5# Summary
is made up of.

21. Homework
5# Summary Worksheet