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The probability that student entering a university will graduate is 0.4. Find the probability that out of 3 students of the university: • None will graduate, • Only one will graduate, • All will graduate.
cbse
class12
modelpaper
2005
sec-c
q22
math
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asked
Jan 24, 2013
by
fingeazy
edited
Jan 24, 2013
by
fingeazy
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Related questions
The probability that a student entering an university will graduate is 0.4. Find the probability that out of 3 students of the university: (i) none will graduate (ii) only one will graduate (iii) all will graduate.
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Jan 7, 2013
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In a book of 200 pages, 200 misprints are randomly distributed. Using Poisson's distribution calculate the probability that a randomly observed page of the book will be found to have atlest 3 errors. [Use: e -1 =0.3679]
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In a group of student, selection of four students for cultural activity from 3 boys and 3 girls has to be done. Find the probability that either 3 boys and 1 girl or 3 girls and one boy are selected.
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Feb 2, 2013
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(i) In a group of student, selection of four students for cultural activity from 3 boys and 3 girls has to be done. Find the probability that either 3 boys and 1 girl or 3 girls and one boy are selected. (ii) Write the importance of co-curricular activities in inculcating human values.
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The probability of student E passing an examination is 0.6 and of student F is 0.2. Assuming that the two events 'E passes' and 'F passes' are independent. Find the probability of : (i) both the students passing the examination (ii) Only E passing the examination.
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Jan 24, 2013
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The probabilities of two students A and B coming to the school in time are $\frac{3}{7}$ and $\frac{5}{7}$ respectively.Assuming that the events,'A coming in time' and 'B coming in time' are independent ,find the probability of only one of them coming to the school in time.Write at least one advantage of coming to school in time.
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Mar 20, 2013
by
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In a hostel 50% of the student read Hindi magazine, 40% read English magazine and 20% read both Hindi and English magazine. A student is selected at random. (a) Find the probability that student read English magazine only. (b) Find the probability that student reads neither English nor Hindi magazines. (c) Explain the role of newspapers / magazines to aware a student.
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2008
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