Question # 1

E |X- M| =

Choose an answer

Zero

Mean deviation

S.D

Variance

If Y = -5 -8x and S.D.(X) =3,then S,D (Y) =

Choose an answer

24

8

5

-24

Which average cannot be compound if any value is less than zero

Choose an answer

G.M

Median

Mode

A.M

G.M of three numbers 2,4,8 is:

Choose an answer

2

8

4

3,67

y = ax + b, then mode (y) = ---------

Choose an answer

Mode (x) a

Mode (x) + b

a mode (x)

None of these

In a 2 x 2 contingency table degrees of freedom is:

Choose an answer

4

2

1

8

The harmonic mean of two numbers a and b is:

Choose an answer

2ab/ a+ b

2 / a +b

ab / a + b

a + b/ ab

In moving average method we can't find trend values of some

Choose an answer

Middle period

Starting and can periods

End periods

Starting periods

The lowest value of variance is:

Choose an answer

1

0

-2

None of them

In binomial distribution trails are:

Choose an answer

Independent

Dependent

Both

None of these

The most suitable average in the construction of index number is

Choose an answer

Mean

Geometric mean

Median

Mode

More Classes

Other Links

NAT I General Science Statistics MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer