I'm working with Excel 2010. I've managed to create a chart showing bell curves for sample data and random data based on the sample mean and standard deviation. My problem is with the x axis, as it is showing the numbers 1-8 ( the bin levels of +- 3 standard deviations) not the bin values themselves. If I select the data within the chart menu it shows the bin values for the x axis but they don't appear, I get the numbers mentioned above and the edit button for the x axis won't activate. Any assistance would be appreciated, especially as this is my first tentative post.