ABP A elearning.utdallas.edu Test: Exam 2 - STAT 3360.002 - Pro.. Course Hero https://elearning.utdallas.edu/bbcsw Problem 7 [10 points - 4 + 3 + 3] Statisticians contracted by American Automotive Association collected n - 256 records about the individ- ual monthly maintenance cost of a wide variety of drivers and cars. They assume that individual records are independent and have a general distribution with mean and standard deviation (in dollars) as follows. M = E[X] = 80 and of- SD [X] = 32 Data would be processed using the approximate distribution of the sample mean, Y = X. 1. Find the approximate probability that Y will be between 77 and 79 dollars. 2. Determine the chance that Y will exceed $75 3. What is the approximate probability that Y will be above $81? Solution