Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
mobile
exams
ask
sample papers
tutors
pricing
sign-in
Download our FREE mobile app with 1000+ tests for CBSE, JEE MAIN, NEET
X
Search
Topics
Want to ask us a question?
Click here
Browse Questions
Student Questions
Ad
Home
>>
EAMCET
>>
Mathematics
0
votes
In a book of 500 pages, it is found that there are 250 typing errors. Assume that Poisson law holds for the number of errors per page. Then, the probability that a random sample of 2 pages will contain no error, is :
\[\begin {array} {1 1} (a)\;e^{-0.3} & \quad (b)\;e^{-0.5} \\ (c)\;e^{-3} & \quad (d)\;e^{-2}\end {array}\]
jeemain
eamcet
math
2006
q43
Share
asked
Nov 6, 2013
by
meena.p
Please
log in
or
register
to add a comment.
Can you answer this question?
Do not ask me again to answer questions
Please
log in
or
register
to answer this question.
1 Answer
0
votes
$ (c)\;e^{-3}$
answered
Nov 7, 2013
by
pady_1
Please
log in
or
register
to add a comment.
Related questions
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
1
answer
It is found that a book will contain $350 pages$ if $32$ lines are allowed in a page how many lines should be allowed in a page, if the book is to contain 280 pages .
asked
Aug 12, 2015
by
meena.p
olympiad
class8
math
ch-10
direct-and-indirect-propaortions
0
votes
1
answer
$20\%$ of the bolts produced in a factory are found to be defective. Find the probability that in a sample of $10$ bolts chosen at random exactly $2$ will be defective using ,Poisson distribution.$ [e^{-2}=0.1353].$
asked
Apr 21, 2013
by
poojasapani_1
tnstate
class12
bookproblem
ch10
sec-1
exercise10-4
p219
q3
q3-2
0
votes
1
answer
A number n is chosen at random from $\{1,2,3,4.......,1000\}$. The probability that n is a number that leaves remainder 1 when divided by 7, is :
asked
Nov 6, 2013
by
meena.p
jeemain
eamcet
math
2006
q40
0
votes
1
answer
If the range of a random variable X is $\{0,1,2,3,4.......\}$ with $P(X =k)= \large\frac{(k+1)a}{3^k}$ for $ k \leq 0,$ then a is equal to :
asked
Nov 12, 2013
by
meena.p
jeemain
eamcet
math
2005
q43
0
votes
1
answer
The elevation of an object on a hill is observed from a certain point in the horizontal plane through its base, to be $30^{\circ}$. After walking 120 metres towards it on level ground the elevation is found to be $60^{\circ}$. Then the height of the object (in meters) is :
asked
Nov 6, 2013
by
meena.p
jeemain
eamcet
math
2006
q33
0
votes
0
answers
A book contains 3 sections. The first section covers 1/5 of the book, the second cover 3/5 and the third covers 1/5. If the book has 500 pages, how many pages are there in each section respectively?
asked
Dec 8, 2014
by
pady_1
class6
math
olympiad
fractions
medium
Ask Question
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
5 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...