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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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0
votes
0
answers
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.
asked
Jan 7, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-b
q21
math
0
votes
0
answers
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]
asked
Jan 24, 2013
by
fingeazy
cbse
class12
modelpaper
2005
sec-c
q22
math
0
votes
0
answers
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.
asked
Feb 2, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-b
q22
math
0
votes
0
answers
(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.
asked
Jan 14, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-b
q22
math
0
votes
0
answers
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.
asked
Jan 24, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-c
q29
math
0
votes
1
answer
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.
asked
Mar 20, 2013
by
sreemathi.v
cbse
class12
modelpaper
2013
sec-b
q22
65-1
q18
65-2
q16
65-3
ch13
math
0
votes
0
answers
A problem in mathematics is given to three students A, B and C whose probabilities of solving are \( \frac{1}{3},\frac{2}{7}\) and \( \frac{3}{8}\) respectively. If all the three try to solve the problem simultaneously, find the probability that exactly one of them, solve the problem.
asked
Jan 30, 2013
by
thanvigandhi_1
cbse
class12
modelpaper
2012
sec-b
q22
math
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