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
>>
CBSE XII
>>
Math
>>
Probability
0
votes
A die is thrown 120 times and getting 1 or 5 is considered success. Find the mean, variance of number of successes.
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q2
p41
math
Share
asked
Feb 5, 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.
Related questions
0
votes
1
answer
A die is thrown $120$ times and getting $1$ or $5$ is considered a success.Find the mean and variance of the number of successes.
asked
Apr 20, 2013
by
poojasapani_1
tnstate
class12
bookproblem
ch10
sec-1
exercise10-3
p215
q2
0
votes
1
answer
A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability of two successes.
asked
Nov 27, 2012
by
balaji.thirumalai
cbse
class12
bookproblem
ch13
sec5
p577
q2
sec-b
easy
math
0
votes
1
answer
A die is thrown 10 times. If getting a prime number is considered a success, find the probability of getting not more than 8 successes.
asked
Dec 20, 2016
by
priyanka.c
cbse
class12
maths
ch13
sec-b
0
votes
0
answers
The mean and variance of a binomial distribution are $ 4 \;and\;\frac{4}{3}.\;Find\;P(X\geq1).$
asked
Feb 5, 2013
by
meena.p
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q16
p41
math
0
votes
0
answers
In a binomial distribution, the sum of mean and variance is 42. Product is 360. FInd the distribution.
asked
Feb 5, 2013
by
meena.p
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q10
p41
math
0
votes
1
answer
A die is tossed twice.A 'success' is getting an even number on a toss.Find the variance of the number of successes.
asked
Jan 9, 2013
by
sreemathi.v
cbse
class12
ch13
q54
p278
exemplar
sec-a
easy
math
0
votes
0
answers
Urn A contain 1 white, 2 black, 3 red balls. Urn B contain 2 white, 1 black, 1 red balls. Urn C contains 4 white, 5 black, 3 red balls. Two balls are drawn from one of the Urn and found to be one white and one red. Find the probabilities that they come from Urns A, B or C.
asked
Feb 5, 2013
by
meena.p
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q1
p41
math
Ask Question
Tag:
Math
Phy
Chem
Bio
Other
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
...