Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 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
CBSE XII Board Exam Series
BES Math
BES Physics
BES Chemistry
BES Biology
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 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
CBSE XII Board Exam Series
BES Math
BES Physics
BES Chemistry
BES Biology
mobile
exams
ask
sample papers
tutors
pricing
login
X
Recent questions and answers in Objective type Questions and Answers
ASK
Home
>>
TN XII Math
>>
Objective type Questions and Answers
The marks secured by $400$ students in a Mathematics test were normally distributed with mean $65$. If $120$ students got more marks above $85$, the number of students securing marks between $45$ nd $65$ is
tnstate
class12
bookproblem
p244
objective
q150
modelpaper
oct-2007
answered
May 23, 2014
by
meena.p
1
answer
If $f(x)$ is a p.d.f of a normal variate $x$ and $X\sim N(\mu,\sigma^{2})$ then $\int\limits_{-\infty}^{\mu}f(x)dx $ is
tnstate
class12
bookproblem
p244
objective
q149
answered
May 23, 2014
by
meena.p
1
answer
The random variable $X$ follows normal distribution $f(x)=ce\large\frac{-1/2(x-100)^{2}}{25}$ Then the value of $c$ is
tnstate
class12
bookproblem
p244
objective
q148
modelpaper
jun-2006
mar-2010
answered
May 23, 2014
by
meena.p
1
answer
If $f(x)$ is a p.d.f of a normal distribution with mean $\mu$ then $\int\limits_{-\infty}^{\infty}f(x)dx$ is
tnstate
class12
bookproblem
p244
objective
q147
modelpaper
oct-2006
mar-2007
jun-2007
answered
May 23, 2014
by
meena.p
1
answer
In a poisson distribution if $P(X=2)=P(X=3)$ then the value of its parameter $\lambda$ is
tnstate
class12
bookproblem
p244
objective
q146
answered
May 23, 2014
by
meena.p
1
answer
For a poisson distribution with parameter $ \lambda=0.25$ the value of the $2^{nd}$ moment about the origin is
tnstate
class12
bookproblem
p244
objective
q145
modelpaper
oct-2009
answered
May 23, 2014
by
meena.p
1
answer
The distribution function $F(X)$ of a random variable $X$ is
tnstate
class12
bookproblem
p244
objective
q144
modelpaper
mar-2008
answered
May 23, 2014
by
meena.p
1
answer
If a random variable $X$ follows poisson distribution such that $E(X^{2})=30$ then the variance of the distribution is
tnstate
class12
bookproblem
p243
objective
q143
modelpaper
jun-2008
answered
May 23, 2014
by
meena.p
1
answer
If in a poisson distribution $P(X=0)=k$ then the variance is
tnstate
class12
bookproblem
p243
objective
q142
modelpaper
oct-2007
mar-2007
oct-2008
mar-2009
answered
May 23, 2014
by
meena.p
1
answer
If $2$ cards are drawn from a well shuffled pack of $52$ cards, the probability that they are of the same colours without replacement, is
tnstate
class12
bookproblem
p243
objective
q141
answered
May 23, 2014
by
meena.p
1
answer
A box contains $6$ red and $4$ white balls.If $3$ balls are drawn at random, the probability of getting $2$ white balls without replacement, is
tnstate
class12
bookproblem
p243
objective
q140
answered
May 23, 2014
by
meena.p
1
answer
In $16$ throws of a die getting an even number is considered a success. Then the variance of the successes is
tnstate
class12
bookproblem
p243
objective
q139
modelpaper
jun-2007
mar-2010
answered
May 23, 2014
by
meena.p
1
answer
If the mean and standard deviation of a binomial distribution are $12$ and $2$ respectively. Then the value of its parameter $p$ is
tnstate
class12
bookproblem
p243
objective
q138
answered
May 23, 2014
by
meena.p
1
answer
The mean of a binomial distribution is $5$ and its standard deviation is $2.$ Then the value of $n$ and $p$ are
tnstate
class12
bookproblem
p243
objective
q137
answered
May 23, 2014
by
meena.p
1
answer
In $5$ throws of a die, getting $1$ or $2$ is a success. The mean number of successes is
tnstate
class12
bookproblem
p243
objective
q136
modelpaper
oct-2006
answered
May 23, 2014
by
meena.p
1
answer
Var $(4X+3)$ is
tnstate
class12
bookproblem
p243
objective
q135
modelpaper
mar-2006
jun-2006
mar-2008
jun-2008
answered
May 23, 2014
by
meena.p
1
answer
$\mu_{2}=20, \mu'_{2}=276$ for a discrete random variable $X$. Then the mean of the random variable $X$ is
tnstate
class12
bookproblem
p243
objective
q134
modelpaper
oct-2009
mar-2010
answered
May 23, 2014
by
meena.p
1
answer
$X$ is a random variable taking the values $3, 4 $and $12$ with probabilities $\large\frac{1}{3},\frac{1}{4}$ and $\large\frac{4}{7}.$ Then $E(X)$ is
tnstate
class12
bookproblem
p242
objective
q132
modelpaper
oct-2008
answered
May 23, 2014
by
meena.p
1
answer
Variance of the random variable $X$ is$4$ .Its mean is $2.$ Then $E(X^{2})$ is
tnstate
class12
bookproblem
p242
objective
q133
modelpaper
jun-2007
mar-2009
answered
May 23, 2014
by
meena.p
1
answer
Given $E(X+c)=8$ and $E(X-c)=12$ then the value of $c$ is
tnstate
class12
bookproblem
p242
objective
q131
modelpaper
oct-2006
oct-2007
jun-2009
answered
May 23, 2014
by
meena.p
1
answer
A random variable $X$ has the following p.d.f\[\]$ \begin{array} {llllllll} \textbf{X:}& 0& 1& 2& 3& 4& 5&6&7 \\ \textbf{P(X):}& 0& k &2k& 2k& 3k& k^{2}&2k^{2}&7k^{2}+k \end{array} $\[\]The value of $k$ is
tnstate
class12
bookproblem
p242
objective
q130
answered
May 23, 2014
by
meena.p
1
answer
$X$ is a discrete random variable which takes the values $0, 1, 2 $ and $P(X=0)=\large\frac{144}{169},$$ P(X=1)=\large\frac{1}{169}$ then the value of $P(X=2)$ is
tnstate
class12
bookproblem
p242
objective
q129
modelpaper
mar-2009
answered
May 23, 2014
by
meena.p
1
answer
A random variable $X$ has the following probability mass function as follows:\[\]$\begin{array} {llllllll} \textbf{X:}& -2& 3 & 1 \\ \textbf{P(X=x):}& \large\frac{\lambda}{6}& \large\frac{\lambda}{4} &\large\frac{\lambda}{12} \end{array}$\[\] Then the value of $\lambda$ is
tnstate
class12
bookproblem
p242
objective
q128
answered
May 23, 2014
by
meena.p
1
answer
A random variable $X$ has the following probability distribution.\[\]$\begin{array} {llllllll} \textbf{X:}& 0& 1& 2& 3& 4& 5 \\ \textbf{P(X=x):}& 1/4& 2a &3a& 4a& 5a& 1/4 \end{array}$\[\]Then $p(1\leq x\leq 4)$ is
tnstate
class12
bookproblem
p242
objective
q127
answered
May 23, 2014
by
meena.p
1
answer
If $f(x)=\large\frac{A}{\pi}\frac{1}{16+x^{2'}}$$-\infty<x<\infty$\[\]is a p.d.f of a continuous random variable $X,$ then the value of $A$ is
tnstate
class12
bookproblem
p241
objective
q126
modelpaper
mar-2006
mar-2007
oct-2008
oct-2009
answered
May 22, 2014
by
meena.p
1
answer
In the set of integers under the operation $^\ast $ defined by $a^{\ast}b=a+b-1$ the identity element is
tnstate
class12
bookproblem
p241
objective
q124
modelpaper
mar-2007
answered
May 22, 2014
by
meena.p
1
answer
In the multiplicative group of $n{ th } $ roots of unity, the inverse of $\omega^{k}$ is $(k<n)$
tnstate
class12
bookproblem
p241
objective
q123
modelpaper
jun-2006
mar-2008
oct-2009
answered
May 22, 2014
by
meena.p
1
answer
The order of $-i$ in the multiplicative group of $4^{th} $ roots of unity is
tnstate
class12
bookproblem
p241
objective
q122
answered
May 22, 2014
by
meena.p
1
answer
Which of the following is correct?
tnstate
class12
bookproblem
p241
objective
q121
modelpaper
oct-2007
answered
May 22, 2014
by
meena.p
1
answer
In the set of real numbers $R,$ an operation $^\ast $is defined by $a^\ast b=\sqrt{a^{2}+b^{2}}.$ Then the value of $(3^\ast4)^\ast 5$ is
tnstate
class12
bookproblem
p241
objective
q120
answered
May 22, 2014
by
meena.p
1
answer
The value of $[3]+11([5]+11[6])$ is
tnstate
class12
bookproblem
p241
objective
q119
modelpaper
mar-2006
jun-2009
answered
May 22, 2014
by
meena.p
1
answer
In the multiplicative group of cube root of unity, the order of $w^{2}$ is
tnstate
class12
bookproblem
p240
objective
q118
modelpaper
jun-2007
oct-2008
answered
May 22, 2014
by
meena.p
1
answer
The order of $[7]$ in $(Z_{9},+_{9})$ is
tnstate
class12
bookproblem
p240
objective
q117
modelpaper
oct-2006
oct-2007
jun-2008
mar-2009
answered
May 22, 2014
by
meena.p
1
answer
In the set of integers with operation $^{\ast}$ defined by $a ^{\ast} b=a+b-ab,$ the value of $3^{\ast}(4^{\ast} 5)$ is
tnstate
class12
bookproblem
p240
objective
q116
modelpaper
jun-2006
answered
May 22, 2014
by
meena.p
1
answer
Which of the following is not a group?
tnstate
class12
bookproblem
p240
objective
modelpaper
oct-2008
answered
May 22, 2014
by
meena.p
1
answer
A monoid becomes a group if it also satisfies the
tnstate
class12
bookproblem
p240
objective
q114
modelpaper
mar-2008
answered
May 22, 2014
by
meena.p
1
answer
Which of the following is not a binary operation on $R$
tnstate
class12
bookproblem
p240
objective
q113
modelpaper
oct-2007
jun-2008
jun-2009
mar-2010
answered
May 22, 2014
by
meena.p
1
answer
$p\leftrightarrow q$ is equivalent to
tnstate
class12
bookproblem
p240
objective
q112
modelpaper
mar-2006
mar-2007
answered
May 22, 2014
by
meena.p
1
answer
Which of the following is a contradiction ?
tnstate
class12
bookproblem
p240
objective
q111
modelpaper
mar-2006
oct-2006
oct-2008
jun-2009
oct-2009
answered
May 22, 2014
by
meena.p
1
answer
Which of the following is a tautology?
tnstate
class12
bookproblem
p240
objective
q110
modelpaper
jun-2007
mar-2008
mar-2009
answered
May 22, 2014
by
meena.p
1
answer
The conditional statement $ p\to q$ is equivalent to
tnstate
class12
bookproblem
p240
objective
q109
modelpaper
mar-2009
answered
May 22, 2014
by
meena.p
1
answer
The number of rows in the truth table of $\sim[p\land(\sim q)]$ is
tnstate
class12
bookproblem
p240
objective
q108
modelpaper
jun-2006
jun-2008
answered
May 22, 2014
by
meena.p
1
answer
If $\;p\;$ is $T$ and $\;q$ is $F$, then which of the following have the truth value$T$? \[\begin{array}{1 1}(1)p \vee q&(2)\sim p\vee q\\(3)p \vee \sim q&(4)p \wedge\sim q\end{array}\]
tnstate
class12
bookproblem
p240
objective
q107
modelpaper
oct-2007
mar-2010
answered
May 22, 2014
by
meena.p
1
answer
If a compound statement is made up of three simple statements, then the number of rows in the truth table is
tnstate
class12
bookproblem
p240
objective
q106
modelpaper
oct-2009
answered
May 22, 2014
by
meena.p
1
answer
Which of the following are statements?\[\begin{array}{1 1}(1)May \;God \;bless\; you.&(2)Rose\; is\; a\; flower.\\(3)Milk \;is \;White.&(4)1 \;is\; a\; prime \;number.\end{array}\]
tnstate
class12
bookproblem
p240
objective
q105
answered
May 22, 2014
by
meena.p
1
answer
The particular integral of the differential equation $f(D)y=e^{ax}$ where $\;.f(D)=(D-a)g(D).g(a)\neq 0$ is
tnstate
class12
bookproblem
p239
objective
modelpaper
jun-2006
answered
May 22, 2014
by
meena.p
1
answer
The P.L of $(3D^{2}+D-14)y=13e^{2x}$ is
tnstate
class12
bookproblem
p239
objective
q103
modelpaper
mar-2006
mar-2007
answered
May 22, 2014
by
meena.p
1
answer
The integrating factor of the differential equation $\large\frac{dy}{dx}$$-y\tan x=\cos x $ is
tnstate
class12
bookproblem
p239
objective
q102
modelpaper
mar-2008
jun-2008
answered
May 22, 2014
by
meena.p
1
answer
On putting $y=vx,$ the homogeneous differential equation $x^{2}dy+y(x+y)dx=0$ becomes
tnstate
class12
bookproblem
p239
objective
q101
modelpaper
jun-2006
answered
May 22, 2014
by
meena.p
1
answer
If $f '(x)=\sqrt{x}$ and $f(1)=2$ then $f(x)$ is
tnstate
class12
bookproblem
p239
objective
q100
modelpaper
oct-2007
answered
May 22, 2014
by
meena.p
1
answer
To see more, click for all the
questions in this category
.
Ask Question
Tag:
Math
Phy
Chem
Bio
Other
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
...
close