Question
Diana took a multiple-choice test of 50 questions and each question carried two marks.
The probability that Diana chose the correct answer for a question was three out of four.
The marks for grade A, grade B and grade C were 80, 72 and 64, respectively. After the
test, Diana was told by her tutor that she did not get grade A. Using normal
approximation of the binomial distribution, find the probability that she got grade C?
The probability that Diana chose the correct answer for a question was three out of four.
The marks for grade A, grade B and grade C were 80, 72 and 64, respectively. After the
test, Diana was told by her tutor that she did not get grade A. Using normal
approximation of the binomial distribution, find the probability that she got grade C?
Answers
Related Questions
In a test there were 25 multiple-choice questions. They were marked as follows:
2 marks for each co...
A test had 200 questions .Each correct answer carried 2 marks.Each wrong answer carried -1/2 marks a...
test consists of 10 multiple choice questions with five choices for each question. As an experiment,...