Based on a normal distribution curve, calculate the probability of an individual being 60 years or older in this population.

Based on a normal distribution curve, calculate the probability of an individual being 60 years or older in this population.

The distribution of ages of the participants range from 18 years to 61 years. These ages are approximately normally distributed with a mean age of 39.93 years and a standard deviation of 11.9. The probability of a member of the population being 60 years of age or older is calculated as:

= NORM.DIST(60, 39.93, 11.9, TRUE) =  0.9542

Therefore, the probability of a member of the population being 60 years of age or older is:

= 1 – 0.9542 = 0.0458 or approximately 4.58%.