Calculating the Probability
An instructor has a test bank consisting of 300 easy true-false questions, 200 difficult true-false questions, 500 easy multiple choice questions and 400 difficult multiple choice questions.
If a question is selected at random from the test bank, what is the probability that it will be:
a) An easy question
b) An easy multiple choice question
c) An easy question, given that it is a multiple choice question.
https://brainmass.com/statistics/probability/calculating-probability-situation-3064
Solution Preview
Total number of questions
= 300 + 200 + 500 + 400
= 1400
a) Number of easy questions: 300 + 500
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Solution Summary
The solution calculates the probability from a given situation.
$2.49