After answering the question, can you wright down the process of using the calculator,

1. Describe the population. The mean (average) age of all California Community College students was 28.08 years, the population variance was 15.7351 years, and the population was normally distributed in the Spring of 2020. a. (4h) What is the standard deviation (rounded to four decimals) of this population? b. (4.1 & 6h /15.b) Assuming this is continuous data, what is the probability that an individual student, randomly chosen from this population, would be 21.4 years old or younger? (Express your answer as a decimal to four places)