Probability and Statistics

Activity 12: Which Brand is Best?

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2.Calculate the range.

3.Now make a box plot on the TI-73.

a.Access the STAT PLOTS menu.

-e (above the & key)

b.Make sure the plots are off.

4 b

c.Select Plot 1.

-e b

d.With the cursor blinking on the word On, select it. b

e.Move to Type and select the box plot (second row, third from left Ö).

# " " " " " " b

f.Move to Xlist. If L1 is not already set, set it to L1.

# - v b

g.Move to Freq. If 1 is not already set, set it to 1.

# Y

Your screen should match the screen at the right.

h.Turn off any Y= functions.

& :

4.View the box plot.

( J

Note that you may need to change the Ymin and Ymax values to 1 and 10, respectively, to match the screen shown at the right.

' # to Ymin Y

#to Ymax Y _ ( J

One way to find the range is shown in the screen

below.

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