Before raw data can be used as scientific evidence, it must be analyzed and summarized. One way of summarizing data is to find the mean, or average, of a set of data points. What method is used for calculating the mean? adding the values of all the data points and dividing by the number of data points dividing the value of each data point by the total value of all the data points multiplying the values of the highest and lowest data point, and then dividing by two subtracting the highest value among the data points from the lowest value.