Let's begin by identifying key information given to us:
[tex]24,21,23,22,26,23,24,21[/tex]The mean of the data set is calculated by using the formula:
[tex]\begin{gathered} m=\frac{SumOfTerms}{NumberOfTerms} \\ m=\frac{\Sigma x}{n}=\frac{24+21+23+22+26+23+24+21}{8} \\ m=\frac{184}{8}=23 \\ m=23 \end{gathered}[/tex]Therefore, the mean of the data set is 23