>
                            $$\bar{x} = \sum_{i=1}^{n}\dfrac{x_{i}}{n}$$
                        </div>
                        <div id="yMean" class="explanation" style="display:none">
                            <p>\(\bar{y}\) is the mean value of the y data. It is defined mathematically as the following:</p>
                            $$\bar{y} = \sum_{i=1}^{n}\dfrac{y_{i}}{n}$$
                        </div>
                        <div id="beta0" class="explanation" style="display:none">
           