Section 15 Using Excel to find best-fit curves. A voluntary response sample is a sample made up of individuals who volunteer to be included in the sample. Excel Trend Function And Other Ways To Do Trend Analysis Ablebits Com Each individual listener can voluntarily decide to take the survey or not. . Microsoft Excel for creating tables scatter plots and completing data analysis. Word and Excel Assignment. Purpose The purpose of this practice exercise is to help prepare you to complete the Word and Excel Assignment. Link to worksheets used in this section. In Section 1112 we looked at useful mathematical models and formulas that we anticipate seeing repeatedly in the business environment. For example suppose a radio host asks listeners to go online and take a survey on his website about their opinion of his show. Excel has features that allow you to plot the data pairs graphically in a chart add a trendline...