The ages of the winners of a cycling tournament are approximately bell-shaped. The mean age is 28.3 years, with a standard deviation of 3.4 years. The winner in one recent year was 23 years old. (a)...

Extracted text: The ages of the winners of a cycling tournament are approximately bell-shaped. The mean age is 28.3 years, with a standard deviation of 3.4 years. The winner in one recent year was 23 years old. (a) Transform the age to a z-score. (b) Interpret the results. (c) Determine whether the age is unusual.