Probability and Statistics

Activity 12: Which Brand is Best?

73

9.Now enter the surveyed information into the TI-73.

a.Enter the brand names in L2. (In this example, we use the brand names from the example table.)

3 " to L2 - t # #, and then

"until " b

$ $, and then ! until A b

# # # # to Done b b

(Because " is only needed for the first element of a categorical list, you can enter the rest of the elements from the Text editor without it.)

b.Before entering the frequency, go back to mode and highlight Float.

. # to Float b

c.Now enter the tally.

3 " to L3 and enter the frequency

d.Go to the Home screen.

- l

10.Make a pictogram on the TI-73.

a.Access the STAT PLOTS menu.

- e (above the & key)

b.Make sure the other plots are off.

Qb

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 pictogram (first row, third from left Î).

# " " b

f.Move to CategList. If L2 is not already set, set it to

L2.

# - v Z

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