The following table summarizes the ages of 184 people qualifying for disability insurance. Use the frequency distribution table to estimate the mean age of people in this data who qualify for disability insurance. Answer to 2 or more decimals Age Interval Frequency 30 - 39 12 40 - 49 18 50 - 59 27 60 - 69 25 70 - 79 10 80 - 89 29 90 - 99 18 100 - 109 27 110 - 119 18