1. 8-3 Using Statistics to Predict (pg 345-347)
Pettit 8-3
8-3 Using Statistics to Predict (pg )
Indicator: N7
Solve problems using percents

2. Vocabulary Survey- a set of questions designed to collect data.
Population- the people involved in the survey (specific group)
Random Sample- to choose a population without preference (not selecting for a specific reason)

3. Stand up if you are wearing jeans.
If there are 480 students in TVMS. How many would we expect to be wearing jeans today?
Is this a random sample?
(are all groups being considered equally)
What % of the population are we?
Is it a big enough sample?
If I survey the students in Mr. Kanavel’s room, how close do you think the estimate would be to ours?

4. The graph above is the result of a national survey
The graph above is the result of a national survey. If there are 230 seventh graders in TVMS, how many would you predict play basketball?
How close do you think our estimate is?

5. Homework
8-3 P
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