12th Standard Syllabus & Materials
12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set C
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set B
NEW12th Standard
TN 12th Standard Biology Zoology - Reproduction in Organisms Creative Questions Study Material - QB365 Set A
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set C
Published on: 22/06/2021
QB365 provides detailed and simple solution for every Creative Questions in class 12 Business Maths Subject.It will helps to get more idea about question pattern in
every Creative questions with solution.
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.
If E(X) = \(\frac{1}{2}, E(X^2)=\frac{1}{4}\), then V(X) is ________
0
\(\frac{1}{4}\)
\(\frac{1}{2}\)
1
2.
V(4X + 3) is _________
7
16V(X)
4V(X)
19
3.
μ2 = 20, μ12 = 276 for a discrete random variable X. Then the mean of the random variable. X is _________
16
5
2
1
4.
Variance of the random variable. X is 4, Its mean is 2. Then E(X2) is _________
2
4
6
8
5.
X is a random variable. Taking the values 3, 4 and 12 with probabilities \(\frac{1}{3},\frac{1}{4}\)and \(\frac{5}{12}\).Then E(X) is
5
7
6
3
1.
(a)
0
2.
(b)
16V(X)
3.
(a)
16
4.
(d)
8
5.
(b)
7
12th Standard Syllabus & Materials
12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set B
NEW12th Standard
TN 12th Standard Physics Electronics and Communication Creative Questions Study Material - QB365 Set A
NEW12th Standard
TN 12th Standard Physics Wave Optics Creative Questions Study Material - QB365 Set D
NEW12th Standard
TN 12th Standard Physics Wave Optics Creative Questions Study Material - QB365 Set C
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
