Week 9
Nov
24 to 30
Week 8 HW due
Week 1 HW due
Week 1 HW due
Statistics:
Graphs & Centers 1
Statistics:
Graphs & Centers 2
Statistics:
Analyzing Data 1
Sec 10.1
Sec 10.2
Sec 10.2
RWP 10.1b
RWP 10.2a
THANKS
GIVING
RWP 10.2b
Thursday to Sunday (Or Monday Night):
READ
Section 10.1 in your book. We will be studying statistics for the rest of the quarter.
On this page, make one of each kind of graph with made up, or even real,
information. I want to see a dot plot, a stem and leaf, a histogram, a bar graph,
WATCH
Stem and Leaf plot on Excel: https://www.youtube.com/watch?v=APIps5sh46s
How to draw a histogram on Excel:
https://www.youtube.com/watch?v=RyxPp22x9PU
Line graphs (scatterplots) on Excel:
https://www.youtube.com/watch?v=oZAZj7NIkic
Bar graphs on Excel: https://www.youtube.com/watch?v=aBV2vvTFI84
Pie Graph and Pictograph on Excel:
https://www.youtube.com/watch?v=eMtX0zyZZ3I
Pictograph on Excel: https://www.youtube.com/watch?v=HhheG3ctmgM
PLAY
Yes! Make some graphs for the “A” problems. And this will be much easier on
Excel. So if you have access, make your graphs on Excel.
Remember to Title your graphs and label axes. You can also label your series or
data using Excel.
Tuesday
READ
Reread 10.1 to help memorize the names and uses for each graph.
Read 10.2 from page 454 to 461.
What is the difference between mean, median and mode? Why is each one useful?
(Yep, you may have to ask that question online…)
For this set of random numbers, put the numbers in order from smallest to largest:
15
27
3
16
27
13
12
13
14
1
27
5
2
20
___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
lowest score: ______
first (lower) quartile: _____
median: _____
THE 5-NUMBER SUMMARY:
third (upper) quartile: _____
is ___ ___ ___ ___ ___
Highest number: _____
Draw a box and whisker plot for this data:
WATCH
Watch the video and play with the interactive box and whisker plot at this website:
http://www.brainingcamp.com/content/box-and-whisker-plots/manipulative.php
Extra Credit: Graph the data from above on Excel:
https://www.youtube.com/watch?v=ZFbPnwKwVWk
PLAY
Problems A 1 – 8 and draw a box plot for #12. I would do this on Excel, at least I
would get the numbers ordered on Excel.
Wednesday-Thursday: Have a Happy Thanksgiving!
Friday to Sunday:
READ
Read 10.2 from page 461 to 469 starting with “Variance and Standard Deviation.”
“The variance formula finds the average of the squares of the distance of each data
point to the mean.” Use the formula to explain why that sentence is true:
What is the standard deviation?
What does the z-score tell you?
In a normal distribution, the z-score is related to what kind of score?
What percentage of the data is within one standard deviation of the mean?
What percentage of the data has a z-score between -1 and 1?
WATCH
How to find descriptive statistics on Excel:
https://www.youtube.com/watch?v=pmOvcSHKm3A
A chalk and talk that really explains distributions very, very well:
https://www.youtube.com/watch?v=ykmT12Ipigc
PLAY
Play with this to first recreate the chart on the top of page 467. Then move the
mean and standard deviation to see that normal curves still have the same
probabilities even when the mean and standard deviation change:
http://www.intmath.com/counting-probability/normal-distribution-graphinteractive.php