A Math class has only 4 students (A, B, C and D) and they independently attend...
A Math class has only 4 students (A, B, C and D) and they independently attend the class. The probability of them attending is 0.5, 0.6, 0.7, and 0.75, respectively. Find the 1 probability that the total number of attendance on 2 consecutive days is exactly 4?
Homework Answers
Ans:
Probabiliity of attending for exactly 4 students on any day=0.5*0.6*0.7*0.75=0.1575
Now,
Probability of attending for exactly students on 2 consecutive days
=P(exactly 4 on day 1)*P(exactly 4 on day 2)
=0.1575*0.1575
=0.0248
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