The value of $$X^2$$ describes the magnitude of the difference between___________.

expected and observed frequency

MCQ Questions for Class 11 Commerce Economics Measures Of Dispersion Quiz 1

If the group data has open end classes, one cannot calculate ________.

0%
median
0%
mode
0%
mean
0%
quartiles

If modal value is not clear in a distribution, it can be ascertained by the method of ________.

0%
grouping
0%
guessing
0%
summarizing
0%
trial and error

If for a series the arithmetic mean is

25

$25$ and the harmonic mean is

9

$9$ , what is the geometric mean?

0%
$25$
0%
$15$
0%
$28$
0%
$16$

X^{2}

${X}^2$ test is equal to____________.

0%
${\sum_{i = 1}^{n}} {A{x}^1} = A{x}^1 + A{x}^2 + ... + A{x}^n$
0%
$V = (r - 1) (e - 1)$
0%
$\dfrac {{\Sigma}(O - E)^2}{E}$
0%
$r = \dfrac {{\Sigma}_{xy}}{\sqrt{{\Sigma}{{x}^2}{{y}^2}}}$

From the following detail find out coefficient of Quartile Deviation.

3 = 64, Q 1 = 50

$3=64,Q1=50$

0%
$12.11$ %
0%
$12.28$ %
0%
$13.50$ %
0%
$12.08$ %

According to ________, "Dispersion is the measure of variations of items".

0%
A.L. Bowley
0%
Spiegel
0%
Simpson and Kafka
0%
L.R. Connor

If Mean deviation is 16 then the standard deviation of the data is____.

0%
18.90
0%
20.0
0%
19.90
0%
19

What is the Relative counterpart of Standard Deviation ?

0%
Coefficient of Standard Deviation
0%
Coefficient of Variation
0%
Coefficient of Dispersion
0%
None

The Gini Coefficient lies between ______.

0%
0-100
0%
0-10
0%
1-5
0%
0-1

Average of

12

$12$ members =

11.0

$11.0$ . Average of the first six members =

10.5

$10.5$ , average of the last six members = ______.

0%
$10.5$
0%
$11.5$
0%
$11.0$
0%
$10.0$

Which one of the following is a measure of dispersion?

0%
Mean
0%
Median
0%
Mode
0%
Standard deviation

The average runs of a cricketer in four innings is

32

$32$ . How many runs he should score in the fifth inning so that his averages score becomes

50

$50$ runs?

0%
$132$
0%
$122$
0%
$128$
0%
$126$

The mean of

4, 3, 9, x, 6 i s 5.4

$4,3,9,x,6 is 5.4$ then x is __________.

0%
$3$
0%
$5$
0%
$8$
0%
$6$

If Z - M =

4

$4$ and Z + M =

60

$60$ , then Z is _______.

0%
$32$
0%
$25$
0%
$28$
0%
$26$

The average runs of two groups is

57

$57$ . The mean of the first group is

52

$52$ and the mean of the second group is

60

$60$ . The proportion of ______.

0%
$3 : 5$
0%
$2 : 5$ 1
0%
$2 : 8$
0%
$5 : 2$

The value of

X^{2}

$X^2$ describes the magnitude of the difference between___________.

0%
two normal distributions
0%
expected and observed frequency
0%
both (A) and (B)
0%
two samples

The mean of first

10

$10$ natural numbers is _______.

0%
$6.5$
0%
$2.5$
0%
$4.5$
0%
$5.5$

To find the median, it is necessary to arrange the data in _______.

0%
ascending order
0%
descending order
0%
ascending or descending order
0%
any of them

Standard error measures the dispersion from the_________-.

0%
arithmetic mean
0%
geometric mean
0%
both (A) and (B)
0%
harmonic mean

The lorenz curve shows the relationship between_____________.

0%
asset creation and income generation.
0%
population groups and their respective income shares.
0%
unemployment and inflation.
0%
wages, labor hours and leisure.

Which of the following are Methods of calculating Standard Deviation?

0%
Actual Mean Method
0%
Assumed Mean Method
0%
Step-Deviation Method
0%
All of these

If the mean and standard deviation of a normal distribution are

33

$33$ and

5

$5$ respectively, what is the Inter-quartile range?

0%
$(6.67)$
0%
$(8)$
0%
$(7.74)$
0%
$(6.8)$

The standard deviation of a frequency distribution is 3.24 find the variance:

0%
9.25
0%
6.25
0%
9.91
0%
10.49

For a distribution, coefficient of variation is 22.5% and mean is 7.5 find the standard deviation___.

0%
1.9975
0%
1.6875
0%
1.243
0%
1.0943

The question of accepting or rejecting a hypothesis drawn depends upon ___________.

0%
the information supplied by the sample data
0%
the information supplied by the standard deviation
0%
both (A) and (B)
0%
none of the above

T-distribution is symmetrical like normal distribution and its mean value is____________.

0%
zero
0%
-1
0%
1
0%
2

A simple formula to calculate the standard error is___________.

0%
$S_{yx} =$ ${\sigma}_{y}{\sqrt{1 - {r}^2}}$
0%
$S_{xy} =$ ${\sigma}_{x}{\sqrt{1 - {r}^2}}$
0%
$S_{yx} =$ S.E.
0%
Both (A) and (B)

X and Y are so related that

2 x + y - 18 = 0

$2x+y-18 = 0$ and mean deviation about mean of x is

3.5

$3.5$ find mean deviation about mean with respect of y____.

0%
$6.07$
0%
$6.71$
0%
$7.00$
0%
$6.01$

For a large sample, the sampling distribution of

X^{2}

$X^2$ may form________.

0%
a continuous curve
0%
severely skewed curve
0%
the symmetrical curve
0%
either (B) or (C)

Which of the following is not true?

0%
Standard Deviation is the most widely used measure of dispersion
0%
Standard Deviation is not based on all values
0%
A change in even one value affects the value of standard deviation
0%
It is independent of origin but not of scale.

CBSE Questions for Class 11 Commerce Economics Measures Of Dispersion Quiz 1 - MCQExams.com

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Practice Class 11 Commerce Economics Quiz Questions and Answers

CBSE Questions for Class 11 Commerce Economics Measures Of Dispersion Quiz 1 - MCQExams.com

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Practice Class 11 Commerce Economics Quiz Questions and Answers

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