The value of \(\int _{ 0 }^{ \frac { \pi }{ 2 } }{ cosx } { e }^{ sinx }dx=\)

(a)

1

(b)

e-1

(c)

0

(d)

-1

If MR = 15 - 8x, then the revenue function is _________

(a)

15x - 4x² + k

(b)

\(\frac{15}{x}-8\)

(c)

-8

(d)

15x - 8

In (x²-y²)dy = 2xy dx, if we put y = vx, then the equation is transformed into _____________

(a)

\(\frac { 1+{ v }^{ 2 } }{ v+{ v }^{ 3 } } dv=\frac { dx }{ x } \)

(b)

\(\frac { 1{ -v }^{ 2 } }{ v(1+{ v }^{ 2 }) } dv=\frac { dx }{ x } \)

(c)

\(\frac { dv }{ { v }^{ 2 }-1 } =\frac { dx }{ x } \)

(d)

\(\frac { dv }{ 1+{ v }^{ 2 } } =\frac { dx }{ x } \)

The value of Δ e^x is ______________

(a)

e^ax (e^h - 1)

(b)

e^x (1- e^h)

(c)

e^x (e^h - 1)

(d)

e^ax (1 - h)

If F(x) is the probability distribution function, then F(- ∞) is_______.

(a)

1

(b)

2

(c)

∞

(d)

0

The probability that a person will hit a target in shooting practice is 0.3. If he shoots 10 times, the probability that he hits the target is ___________

(a)

1

(b)

1-(0.7)¹⁰

(c)

(0.7)¹⁰

(d)

(0.3)¹⁰

If α is the level of significance. then the confidence Co-efficient is

(a)

α

(b)

1

(c)

1-α

(d)

1+α

The methods of measurements of trends are __________

(a)

Graphic

(b)

semi averages

(c)

least squares

(d)

control charts

If the number of rows is____tothenumber of columns, then the assignment problem is said to be balanced.

(a)

equal

(b)

less

(c)

more

(d)

not equal

The least cost method is more economical than North West Corner Rule, since it starts with the ___________

(a)

least cost

(b)

minimum cost

(c)

maximum cost

(d)

lower beginning cost