SOLUTION: Three students approved in an examination with the following probability to pass the exam 9/10,8/10,7/10.what is the probability that atleast one of them will pass the exam

Question 1191227: Three students approved in an examination with the following probability to pass the exam 9/10,8/10,7/10.what is the probability that atleast one of them will pass the exam
Answer by ikleyn(52803) (Show Source): You can put this solution on YOUR website!
.
Three students approved in an examination with the following probability
to pass the exam 9/10,8/10,7/10.
what is the probability that atleast one of them will pass the exam
~~~~~~~~~~~~~~~~

The probability that no one will pass the exam is

    P = (1-0.9)*(1-0.8)*(1-0.7) = 0.1*0.2*0.3 = 0.006.


The probability that at least one will pass the exam is the complement to it

    P' = 1 - P = 1 - 0.006 = 0.994.     ANSWER

Solved.

RELATED QUESTIONS
Three students appeared in an examination with the following probabilities to pass the... (answered by ikleyn)

60 students pass the maths exam and 50 pass the english exam. 10 students pass in neither (answered by robertb)

The time needed to complete a final examination in a particular college course is... (answered by Boreal)

Assume that 60% of the student loan applications are approved. Out of 10 applications.... (answered by stanbon)

A statistics student needs a grade of at least 70 to pass an examination. The exam... (answered by funmath)

The University of Smallville requires its students to pass an examination in... (answered by edjones)

What is the age distribution of patients who make office visits to a doctor or nurse? The (answered by richard1234)

A set of final examination grades in an introductory statistics course was founded to be... (answered by stanbon)

it is estimated that 10 percent of those taking the quantitative methods portion of the... (answered by edjones)