Make a frequency distribution of the following scores from a mathematics test. (Use the General Rules for Choosing Intervals for Grouped Data. Order your intervals from least to greatest. Use an interval length of 7.)
Extracted text: 86, 79, 74, 69, 87, 81, 68, 71, 78, 75, 88, 85, 67, 83, 82, 89, 63, 84, 94, 66, 84, 78, 96, 67, 63, 59, 100, 90, 100, 94, 79, 79, 74 Midpoint Frequency f Product Interval xf Use the frequency distribution to find the mean score. (Round your answer to the nearest whole number.) mean =