The given data is
Easy |
Difficult |
Total |
|
True/False |
300 |
200 |
500 |
Multiple Choice |
500 |
400 |
900 |
Total |
800 |
600 |
1400 |
Let E : Easy questions, D : Difficult questions
T : True/false questions and M : Multiple choice questions
Number of easy multiple choice questions = 500
Total number of questions = 1400 = Probability of selecting an easy and multiple choice question
Total number of multiple choice questions
= 500 + 400 = 900
P(M) = Probability of selecting one multiple choice question
Two coins are tossed once, where
E : tail appears on one coin, F : one coin shows head
Determine P(E | F).
Two coins are tossed once, where
E : no tail appears, F : no head appears
Determine P(E | F).