Question

The ages of the winners of a cycling tournament are approximately​ bell-shaped. The mean age is 27.3 ​years, with a standard deviation of 3.4 years. The winner in one recent year was 22 years old.
​(a) Transform the age to a​ z-score.
​(b) Interpret the results.
​(c) Determine whether the age is unusual.

Answer 1

Answer:

Convert the age to a z-score:

Step-by-step explanation:

Let X be the random variable with mean 27.2 and standard deviation 3.8.

Here, the observation, x is 24.