CUET Mathematics Applied Mathematics > Inferential Statistics PYQs

2.3

3

2.58

0.6

selecting 10 employees from an organization with 100 employees

Selected 10 students from my class and finding their mean height to represent average class height

Finding mean income of all families in a city

Finding median income of all families in the city

it states that a distribution of sample approaches a normal distribution

it shows bell shaped curve

it does not depend on the shape of population distribution

it can be represented by using a pie chart

cluster sampling

snowball sampling

voluntary response sampling

systematic sampling

The mean marks of 100 student in a school of strength 2000

the median height of 100 students in a school of strength 2000

the mean salary of all workers of an organization

the mean salary of randomly selected half of all employees of an organization

B , C , D only

A , B , D only

A , B , E only

D , E only

1.2

2.1

1.3

-1.2

+1.54

-1.54

-1.74

-1.10

$\bar{x}$ is sample mean

$\mu_0$ is population mean

n is sample size

$\sigma$ is variance of the population

2.5

3

2

4.2

Margin of error

Alternate

Level of significance

Confidence interval

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

(A)-(IV), (B)-(III), (C)-(II), (D)-(I)

$10\sqrt{\frac{7}{222}}$

$20\sqrt{\frac{7}{222}}$

$5\sqrt{\frac{7}{222}}$

$\sqrt{\frac{7}{222}}$

5

10

6

8

sample size

parameter

standard error

standard measure

1.5

$-0.5$

0.75

$-0.25$

1.85

$-2.05$

$-2.15$

1.65

$\sqrt{\frac{3}{2}}$

$\sqrt{3}$

2.5

$\sqrt{2}$

(A)-(I), (B)-(IV), (C)-(II), (D)-(III)

(A)-(IV), (B)-(I), (C)-(II), (D)-(III)

(A)-(II), (B)-(III), (C)-(IV), (D)-(I)

(A)-(III), (B)-(I), (C)-(IV), (D)-(II)

(A), (C) only

(B), (C) only

(A) only

(B) only

A-II, B-III, C-IV, D-I

A-I, B-IV, C-II, D-III

A-IV, B-I, C-II, D-III

A-IV, B-I, C-III, D-II

2

$-2$

$-0.5$

$0.25$

5, $\sqrt{2}$

5, $\frac{\sqrt{2}}{2}$

$\sqrt{5}$, 2

5, 2