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# 1-7 Presenting Data

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• ### Transcript of "1-7 Presenting Data"

1. 1. Warm - Up <ul><li>Write the significant figures and convert into scientific notation for each of the following: </li></ul><ul><ul><li>54.30 </li></ul></ul><ul><ul><ul><li>4 sig figs </li></ul></ul></ul><ul><ul><ul><li>5.430 x 10 1 </li></ul></ul></ul><ul><ul><li>0.00230 </li></ul></ul><ul><ul><ul><li>3 sig figs </li></ul></ul></ul><ul><ul><ul><li>2.30 x 10 -3 </li></ul></ul></ul><ul><ul><li>1000.00 </li></ul></ul><ul><ul><ul><li>6 sig fig </li></ul></ul></ul><ul><ul><ul><li>1.00000 x 10 3 </li></ul></ul></ul>
2. 2. 1-7: Presenting Data <ul><li>Organize and analyze data using tables and graphs. </li></ul><ul><li>Determine type of graph to use. </li></ul>
3. 3. Why do we graph data? <ul><li>To show the relationship between the graphed variables. (Without calculations) </li></ul><ul><li>To gain interpolated and extrapolated data. </li></ul><ul><ul><li>“ inter” – in between data points. </li></ul></ul><ul><ul><li>“ extra” – outside of data points. </li></ul></ul>
4. 4. Graphing is NOT: <ul><li>Easier – Quitting after data collection is easier than graphing the data! </li></ul><ul><li>More visual – A data table is also a visual! </li></ul><ul><li>More organized – A data table is organized, by its very design! </li></ul>
5. 5. Rules for Graphing <ul><li>Label x and y axes . Include units. </li></ul><ul><li>Title your graph. (y vs. x!) </li></ul><ul><li>Number axes correctly. </li></ul><ul><li>Plot data with a fine point </li></ul><ul><li>Connect data points - smooth curve or line of best fit. </li></ul>
6. 7. Sample data for graphing <ul><li>Height vs. # of boxes </li></ul><ul><li># of boxes height (m) </li></ul><ul><li>1 0.5 </li></ul><ul><li>2 1.0 </li></ul><ul><li>3 1.5 </li></ul><ul><li>4 2.0 </li></ul><ul><li>5 2.5 </li></ul><ul><li>6 3.0 </li></ul><ul><li>Height vs. # of lamps </li></ul><ul><li># of lamps height (m) </li></ul><ul><li>1 0.4 </li></ul><ul><li>2 1.0 </li></ul><ul><li>3 1.3 </li></ul><ul><li>4 2.1 </li></ul><ul><li>5 4.1 </li></ul><ul><li>6 4.5 </li></ul>
7. 8. Interpreting the Graphs <ul><li>Which graph would give more reliable interpolated and extrapolated data? </li></ul><ul><li>If I had 7.5 m of stacked boxes, how many boxes would I have? </li></ul><ul><li>Approximately how tall would a stack of 7 lamps be? </li></ul><ul><li>How many boxes could I stack in a room with a 4 m ceiling? </li></ul>
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