8-3 Using Statistics to Predict (pg )

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Presentation transcript:

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

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)

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?

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?

Homework 8-3 P. 346-347 #5-18 all