12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A
Published on: 09/11/2020
12th Standard Business Maths English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Four
Download Tamil Nadu 12th Standard Business Maths and Statistics question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Business Maths and Statistics Test
1.
Variance of the random variable. X is 4, Its mean is 2. Then E(X2) is _________
2
4
6
8
2.
The two methods of interpolation are ______________
Forward & backward interpolation
graphical method & forward interpolation
graphical method & backward interpolation
graphical method & algebraic method
3.
If m and n are positive integers then ΔmΔnf(x) = _______.
Δm+nf (x)
Δmf(x)
Δnf (x)
Δm-nf (x)
4.
If y = cx + c− c3 then its differential equation is ______.
\(y=\frac { dy }{ dx } +\frac { dy }{ dx } -{ \left( \frac { dy }{ dx } \right) }^{ 3 }\)
\(y={ \left( \frac { dy }{ dx } \right) }^{ 3 }=x\frac { dy }{ dx } -\frac { dy }{ dx } \)
\(\frac { dy }{ dx } +y={ \left( \frac { dy }{ dx } \right) }^{ 3 }-x\frac { dy }{ dx } \)
\(\frac { { d }^{ 3 }y }{ d{ x }^{ 3 } } =0\)
5.
6.
ഽ\(\frac { { 2x }^{ 3 } }{ 4+{ x }^{ 4 } } \)dx is _______.
\(log\left| 4+{ x }^{ 4 } \right| +c\)
\(\frac { 1 }{ 2 } log\left| 4+{ x }^{ 4 } \right| +c\)
\(\frac { 1 }{4 } log\left| 4+{ x }^{ 4 } \right| +c\)
\(log\left| \frac { { 2x }^{ 3 } }{ { 4+x }^{ 4 } } \right| +c\)
7.
The parameters of the normal distribution \(f(x)=\left(\frac{1}{\sqrt{72 \pi}}\right)\)\(\frac{e^{-(x-10)^{2}}}{72}\) –∞ < x < ∞ ________.
(10,6)
(10,36)
(6,10)
(36,10)
8.
A formula or equation used to represent the probability distribution of a continuous random variable is called ________.
probability distribution
distribution function
probability density function
mathematical expectation
9.
If MR and MC denotes the marginal revenue and marginal cost functions, then the profit functions is ________.
P = ഽ(MR − MC) dx + k
P = ഽ(MR + MC) dx + k
P = ഽ(MR)(MC)dx + k
P = ഽ(R −C)dx + k
10.
1.
(d)
8
2.
(d)
graphical method & algebraic method
3.
(a)
Δm+nf (x)
4.
(a)
\(y=\frac { dy }{ dx } +\frac { dy }{ dx } -{ \left( \frac { dy }{ dx } \right) }^{ 3 }\)
5.
(b)
6.
(b)
\(\frac { 1 }{ 2 } log\left| 4+{ x }^{ 4 } \right| +c\)
7.
(b)
(10,36)
8.
(c)
probability density function
9.
(a)
P = ഽ(MR − MC) dx + k
10.
(b)
12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications களப்பெயர் முறைமை (DNS) Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications வலையமைப்பு எடுத்துக்காட்டுகள் மற்றும் நெறிமுறைகள் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications கணினி வலையமைப்பு ஓர் அறிமுகம் Sample Question Papers Study Material - QB365 Set A
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
