If we are using the normal approximation to determine the ...

[Haya94]

If we are using the normal approximation to determine the probability of at most 28 successes in a binomial
  distribution (P(x  28)), the normal distribution probability that is used to make the estimate is
 
  A) P(x  27.5). B) P(x  28). C) P(x  28.5). D) P(x < 28).

Question 2

A quiz consists of 10 true or false questions. To pass the quiz a student must answer at least eight questions correctly. If the student guesses on each question, what is the probability that the student will pass the quiz?
 
  A) 0.8 B) 0.08 C) 0.055 D) 0.20

[dpost18]

Answer to Question 1

C

Answer to Question 2

C