Answer for item number two

1 [ Page view | A Read aloud Draw Highlight v General Direction: Write all your answers in separate sheet of paper. 1. Given a normal distribution with u = 100 and o = 10, what is the probability that a. X > 75? b. X 110? d. Between what two X values (symmetrically distributed around the mean) are 80% of the values? 2. A statistical analysis of 1,000 long-distance telephone calls made from the headquarters of the Bricks and Clicks Computer Corporation indicates that the length of these calls is normally distributed, with u - 240 seconds and o = 40 seconds. a. What is the probability that a call lasted less than 180 seconds? b. What is the probability that a call lasted between 180 and 300 seconds? c. What is the probability that a call lasted between 1 10 and 180 seconds? d. 1% of all calls will last less than how many seconds? 3. Consider a population of 1,024 mutual funds that primarily invest in