Problem#6 6.10 A set of final examination grades in an introductory statistics course is normally distributed, with a mean of 73 and a standard deviation of 8. a. What is the probability that a student scored below 91 on this exam? b. What is the probability that a student scored between 65 and 89? c. The probability is 5% that a student taking the test scores higher than what grade? d. If the professor grades on a curve (i.e., gives A's to the top 10% of the class, regardless of the score), are you better off with a grade of 81 on this exam or a grade of 68 on a different exam, where the mean is 62 and the standard deviation is 3? Show your answer statistically and explain. Ignore part (d) of problem #6 (Book problem#6.10).

Describe the operation of the compiler and the rationale for the need of testing it.

What function do design patterns serve in the process of developing software, and how can one make the most efficient use of them? How many different kinds of design patterns do you have available to show us as examples?

Discuss the concept of testability and provide a quick overview of the compiler.