NAT-IGS General Science Statistics Easy Test

MCQ's Test For NAT-IGS General Science Statistics Easy Test

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NAT-IGS General Science Statistics Easy Test

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Question # 1

In symmetrical distribution the values of mean median and mode

Question # 2

The sum of the squares of deviation is least form:

Question # 3

Standard deviation is calculated from H.M

Question # 4

Selection of cricket team by the selectors is a process of

Question # 5

If critical region is located on both sides it is called

Question # 6

The regression coefficient of x on y is:

Question # 7

How many basic types of index numbers are?

Question # 8

Var (2x + 3) is:

Question # 9

Probability of an event always lies between

Question # 10

If constants are added to or subtracted from the values of the variable the value of r is

Question # 11

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

Question # 12

Given var (x) = 3 and var (y) = 5.1 f x and y are independent variables then var (x- y)=

Question # 13

Mean deviation is least when deviations are taken from:

Question # 14

The types of dispersion are:

Question # 15

Sum of deviation from Mean is always

Question # 16

Which index number may be weighted?

Question # 17

The experiment means a well define:

Question # 18

A perfect positive correlation is signified by

Question # 19

The median of A,S,S,O,C,I,A,T,E is:

Question # 20

The probability of an impossible event is equal to:

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NAT-I Statistics Chapter 1 Important MCQ's

Sr.# Question Answer
1 An arrangement of data to show the frequency of occurrence is called
A. Frequency distribution
B. Probability distribution
C. Data array
D. Cumulative distribution
2 Components of time series are
A. Four
B. Three
C. Two
D. One
3 Rejecting Ho if Ho is true is
A. No error
B. Type-I error
C. Type-II error
D. Standard error
4 A quantitative variable whose values are countable is called
A. Categorical variable
B. Continuous variable
C. Discrete variable
D. None of these
5 G.M of three numbers 2,4,8 is:
A. 2
B. 8
C. 4
D. 3,67
6 In binomial distribution:
A. Mean = variance
B. Mean > variace
C. Mean < variance
D. Zero
7 The lowest value of variance is:
A. 1
B. 0
C. -2
D. None of them
8 A hypothesis in which all parameters are specified is called
A. Composite hypothesis
B. Null hypothesis
C. Simple hypothesis
D. All
9 The properties of hypergeometric experiment are:
A. Three
B. Four
C. Five
D. One
10 The index numbers calculated by considering the relative importance of variables are called:
A. Un-weighted
B. Weighted
C. Simple
D. None

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