Download Monday October 25, 2010 Things to do in the computer lab:

Monday October 25, 2010
Things to do in the computer lab:
1. Finish the Excel homework with the pie and bar charts about technicians, teachers and numbers
of astronauts
2. Make a chart of this bit of our class data:
Gender/School
Carpool
Bus
Drive
Walk
Bike
Other
Male
2
1
6
3
0
1
Female
0
3
1
3
0
2
Remember to label it clearly.
3. Go to http://www.cabrillo.edu/~mladdon/math190/Math190A.htm and scroll down to “Week
8”. Select the link to Student Data (xls). This will open up the Excel file of the data from our class.
Here is how we can use Excel to calculate statistics for us:
a) Move the cursor to cell G25 and type “mean”. Type “median” in cell G26, “mode” in G27,
and “range” in G28.
b) Put the cursor in cell H25. Go to the top of the page and click on the “fx” piece. You will see
an equals sign and the “insert function” menu should pop up. Under “select a category” click
on “Statistical”. Then select “Average” (this is the mean), and then “OK”. In the space for
“number1”, type H2:H23 if it doesn’t appear automatically. Click “OK” again. The mean of
the ages will now be in cell H 25.
c) Now put the cursor in cell H26. Select the statistical function “Median”. Make sure that
“H2:H23” is typed in for “number1”, or you can just select the column and the cell numbers
will show up. Press “OK”. The median will now be in cell H26.
d) Put the cursor in cell H27, select the statistical function “Mode”. Make sure that the cells
specified are H2:H23. Press “OK” and you should see the mode in cell H27.
Save your work!
4. For the number of hours that we watch TV per day, use Excel to find the mean, median and
mode. You will first have to change the “all day” response to “24”. (Put the labels “mean”,
“median”, “mode” in column M below the data, and put the numerical calculations in column
N.)
For problems 2, 3 and 4, you can just email me your spreadsheets with the statistics calculated.
([email protected])