1. The ages of workers in Illuminex plant are approximately normally distributed with a mean of 47 years and a standard deviation of 8 years. A worker is stopped at random and asked to fill out a questionnaire. What is the probability that this worker is less than 32 old?
2. Given the information to #1 above, what is the probability that this worker is between 43 and 57years old?
Show Formulas and draw a curve if possible with the correct area shaded.