2. Height of 5 different tomato plant populations from different areas tomato plants height (cm)pop1pop2pop3pop4pop5 3238273518 3143293419 2734223721 3440 3623 3744233617 3845223216 3639263724 2246253525 34482333 2339303419 mean31.441.626.734.921.5 STDEV5.6607814.2998715.457921.663335.038739

3. 1.Make a table of the mean values. 2.Go to excel and add the table. 3.Highlight the mean values and their labels Tomato plant height (cm) Pop 1pop2pop3pop4pop5 mean 31.441.626.734.921.5 STDEV 5.6607814.2998715.457921.663335.038739 4.Click on the tab labelled insert. 5.The area that deals with charts, select column, left and click on 2D. 6. The following is the graph you should get

5. Add the standard deviation 1.Click once on the chart to select the whole thing. 2.Tabs at the top will change to show chart tools. Select layout out. 3.Click on error bars, then click on more error bar options, at the bottom. 4.Format error bars dialogue box appears. 5.Click on custom, then specify value. 6.Dialogue box, custom error bars appears.

6. 7. Click on the box underneath positive error value. 8. Click and drag on the cells that contain the standard deviations for the 5 populations. 9.Click on the box underneath the negative error values and do the same. 10.you are telling excel exactly what values to enter on the bar chart.

7. This is what your graph will look like.