Solve the following equation algebraically: 3 x squared = 48
a.
Plus-or-minus 6.93
b.
Plus-or-minus 8
c.
Plus-or-minus 4
d.
Plus-or-minus 0.25

In a dot plot, each one of the dots represents a value in the data set. When there are multiple values at a particular number, the dots just get stacked on top of each other. Using the dots in the plot, you can find the mean, median, mode or any other statistic that you need to summarize the data.