Avia just finished collecting data on sea star length for her research project. What should she do to determine the average of the data set?
A. add up the data values and then divide the total by the number of data points
B. arrange all the data in order from smallest to largest and find the middle value
C. use a linear equation to graph the data and then solve for the value of x
D. plot a graph using a quadratic formula and determine the minima point
A. add up the data values and then divide the total by the number of data points
To determine the average of a data set, Avia should add up all the sea star lengths and then divide the total by the number of data points. This will give her the average length of the sea stars in her data set.