The questions is as follows: Multiple choice exams. A student takes a multiple c

Question

The questions is as follows:

Multiple choice exams. A student takes a multiple choice exam with10 questions, each with four possible selections for the answer. Apassing grade is 60% or better. Suppose that the student was unableto study for the exam and just guesses at each question. Find theprobability that the student

a) gets at least one question correct.
b) passes the exam
c) receives an A on the exam (90% or better).
d) How many questions would you expect the student to getcorrect?
e) Obtain the standard deviation of the number of questions thatthe student gets correct.

I am not even sure about how I should set this up, someone pleasehelp!

Explanation / Answer

please write out the question. many of us that would liketo answer don't have all the books.

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