Question # 1

A graph of a cumulative frequency distribution is called:

Choose an answer

Frequency curve

Frequency polygon

Ogive

Histogram

In unimodal distribution If mode is less than mean then distribution is

Choose an answer

Symmetrical

Normal

Positively skewed

Negatively skewed

By decreasing ×̅ the length of confidence interval for m

Choose an answer

Increases

Decreases

No effect

None of these

If 1- a = 0.90, then value of Z_a/2 is

Choose an answer

1.645

1.96

2.33

2.575

In binomial experiment each trail has:

Choose an answer

One outcome

Two outcome

Three outcome

Four outcome

Accepting H_o /H_o is true

Choose an answer

No error

type I error

Type II error

A

Shortage of certain consumer goods before annual budget

Choose an answer

Secular trend

Seasonal variation

Cyclical variation

Irregular variation

The geometric mean of the values -2,4,-3,6,0 is:

Choose an answer

-3

0

3

Cannot be computed

For a given set of bivariate data if B_yx = 0.52 and b_xy = -1.02 then r is

Choose an answer

0.73

-0.73

0.00

1.00

A perfect positive correlation is signified by

Choose an answer

0

-1

+1

-1 to +1

Selection of cricket team by the selectors is a process of

Choose an answer

Random Sampling

Non-random sampling

Stratified sampling

Probability sampling

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