Sketch a normal curve. Read and answers the problems below.

1. Luz gathered data about her commute time from her house to school. She comes up with an average time of

20 minutes and a standard deviation of 3.5. Assuming a normal distribution, what is a probability it takes her

to get to school

a. Less than 27 minutes?

b. Between 25 to 30 minutes?

c. Longer than 27 minutes?

2. In a Statistics and Probability test, the scores are normally distributed with a mean of 65 and a standard

deviation of 9. Find the percent of scores less than 54.