72 | Using the | Probability and Statistics |
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
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
➪A nice connection is to compare the trace values
for Xmin, median, and
Xmax with their calculated values.
Product Type:
Brand Name | Price | Tally for each choice |
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1. Brand A | $1.89 | lllll lllll lllll ll |
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2. Brand B | $2.25 | lllll lllll lllll lllll |
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3. Brand C | $1.89 | lllll |
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4. Brand D | $1.86 | lll |
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5. Brand E | $1.98 | llll |
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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.
➪You can use =to enter fractions (numerator = denominator ") and >
to convert them to decimals.
Example table
Brand Name | Frequency | Fraction | Decimal | Percent |
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Brand A | 17 | 17/50 | 0.34 | 34% |
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Brand B | 21 | 21/50 | 0.42 | 42% |
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Brand C | 5 | 5/50 | 0.10 | 10% |
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Brand D | 3 | 3/50 | 0.06 | 6% |
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Brand E | 4 | 4/50 | 0.08 | 8% |
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© 1998 TEXAS INSTRUMENTS INCORPORATED