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Business Statistics

Total questions: 20

Worksheet time: 47mins

Name
Class
Date
1.

"Averages are statistical constant which enable us to comprehend in a single effort the significance of the whole" this definition of Measures of central tendancy is given by

a)

Kaplan

b)

Ya Lun Chou

c)

Bowley

d)

Cowden

2.

Arithmatic Mean In Individual series formula

a)

\sum_{ }^{ }  Fx /N

b)

\sum_{ }^{ }  Fx /N

c)

\sum_{ }^{ } X/N

d)

\sum_{ }^{ } Yn/N

3.

Short cut method of Arithmatic mean under Discrete Series formula is

a)

A+  Σ\Sigma  fd/N

b)

 fd/N

c)

A+  Σ\Sigma  fd

d)

  Σ\Sigma  fd/N

4.

Write the formula of Arithmatic Mean of Continious Series of short cut method

5.

Write the weighted Arithmatic mean Formula

6.

Combined mean formula

7.

the value which divide the given data in four equal parts is known as

a)

Quartile

b)

Decile

c)

percentile

d)

median

8.

27,31,19,35,23,16,40,46,17,37

Calculate Median from given the data

a)

25

b)

22

c)

23

d)

29

9.

Calculate Quartiles from the given data

22,26,14,30,18,11,35,41,12,32

a)

Q1=13.5

Q3 = 32.75

b)

Q1 = 24.5

Q3 = 20.5

c)

none

10.

Quartiles formula in descret series is

a)

Q1 = N+1/4

b)

Q2 = N+1/4

c)

Q1 = N+1/4

Q3 = 3(N+1)/4

d)

none

11.

Calculate Median from the following data

X 20 30 40 50 60 70 80

Y 5 6 10 20 15 6 4

4 lines
12.

Write the formula of Median in continious Series

13.

Marks more than 0 10 20 30 40 50

No.of Students 50 46 40 20 10 3

Show the simple frequency

4 lines
14.

Write the formula of Mode in continious Series

15.

Write Geometic mean formula

16.

Harmonic Mean formula in discrete series

a)

H.M = N/ Σ\Sigma  f x1/x

b)

H.M = N/ 1/x

c)

H.M = N/ Σ\Sigma  1/x

d)

H.M = N/ f x1/x

17.

Inter Quartile Deviation = Q3-Q1

a)

True

b)

False

18.

Co efficient of Quartile Deviation formula is

4 lines
19.

Write the formula for Mean Coefficient of Dispersion

20.

What is the formula of Mean deviation in discrete Series