MCQ

MCQ 11 Mark

If $y=a x+b$, where $a$ and $b$ are constants then what wil be $\frac{d y}{d x}$ ?

✓
$a$
B
$b$
C
$a+b$
D
$0$

Answer

Correct option: A.

$a$

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MCQ 21 Mark

What is the value of $\lim _{x \rightarrow 3} 3 x-1$ ?

A
$9$
B
$10$
C
$\frac{4}{3}$
✓
$8$

Answer

Correct option: D.

$8$

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MCQ 31 Mark

Mean and the first quartile for a normal distribution are $11$ and $3$ respectively. Which of the following is the value of the third quartile $?$

A
$8$
B
$14$
✓
$19$
D
$10$

Answer

Correct option: C.

$19$

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MCQ 41 Mark

In normal distribution usually which limits include $99 \%$ of the observations ?

A
$\mu \pm 1.96 \sigma$
B
$\mu \pm 2 \sigma$
C
$\mu \pm 3 \sigma$
✓
$\mu \pm 2.575 \sigma$

Answer

Correct option: D.

$\mu \pm 2.575 \sigma$

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MCQ 51 Mark

The binomial distribution has mean $5$ and variance $\frac{10}{7}$. What will be the type fo this distribution?

A
Positively skewed
✓
Negatively skewed
C
Symmetric
D
Nothing can be said about the distribution

Answer

Correct option: B.

Negatively skewed

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MCQ 61 Mark

What is the value of $P\left(A \cap A^{\prime}\right)$ for events $A$ and $A^{\prime}$ ?

A
$1$
✓
$0$
C
$0.5$
D
between $0$ and $1$

Answer

Correct option: B.

$0$

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MCQ 71 Mark

Which types of variations are produced in the time series variable due to seasonal component?

A
Long-term
B
Irregular
✓
Regular
D
Zero

Answer

Correct option: C.

Regular

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MCQ 81 Mark

What is the error ' $e$ ' in estimation in case of regression line of $Y$ on $X$ ?

✓
$y-\hat{y}$
B
$\hat{x}-\hat{y}$
C
$x-\hat{x}$
D
$\hat{y}-y$

Answer

Correct option: A.

$y-\hat{y}$

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MCQ 91 Mark

Which of the following values is not possible as a value of $' r '?$

A
$0.99$
✓
$-1.07$
C
$-0.85$
D
$0$

Answer

Correct option: B.

$-1.07$

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MCQ 101 Mark

If the purchasing power of money is $0.75$ in the year $2019$ with respect to the base year $2018$ then what will be the price index number for the year $2019 ?$

A
$750$
B
$175$
✓
$133.33$
D
$275$

Answer

Correct option: C.

$133.33$

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