Texas Instruments TI-73 Teachers Manual page 77

72
Using the TI-73: A Guide for Teachers
5. Move around the graph and see the data.
)
! and " to view data
6. Have students sketch and label their plot on paper for
their report. (If you have
students may print their graphs to color and label.)
7. Have students poll 50 people (students, teachers, and
other adults) to find out which of the brands they
would actually buy. Have them record the responses in
the table provided on the activity sheet.
Students should try to poll those who would actually
want to buy the product. They should ask the person
why they chose that brand and include their responses
with their student analyses.
Example poll
Product Type:
Brand Name
1. Brand A
2. Brand B
3. Brand C
4. Brand D
5. Brand E
8. In the table on the activity sheet, have students record
the name of their product, the frequency, and their poll
results as a fraction, decimal, and percent.
Example table
Brand Name
Brand A
Brand B
Brand C
Brand D
Brand E
© 1998 T I
EXAS NSTRUMENTS
TI-73 TI-GRAPH LINKé
Price
$1.89
$2.25
$1.89
$1.86
$1.98
Frequency Fraction
17 17/50
21 21/50
5 5/50
3 3/50
4 4/50
I
NCORPORATED
Pr obability and Statistics
A nice connection is to
compare the trace values
for
Xmax
values.
,
Tally for each choice
lllll lllll lllll ll
lllll lllll lllll lllll
lllll
lll
llll
You can use = to enter
fractions (numerator =
denominator " ) and >
to convert them to
decimals.
Decimal Percent
0.34 34%
0.42 42%
0.10 10%
0.06 6%
0.08 8%
Xmin , median , and
with their calculated