NAT-IGS General Science Statistics Easy Test

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

Try The 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

If var (x) =5, var(y) =10, then var (2x + y) is:

Question # 2

The probability of rejecting Ho when it is true is called

Question # 3

If E (X) =4, then find arithmetic mean will be:

Question # 4

Pn/ Pn-1 100 is equal to:

Question # 5

How many basic types of index numbers:

Question # 6

The best fitting trend is one for which the sum of squares of errors is:

Question # 7

In normal distribution P (m-d sΣ x Σ m+ s)

Question # 8

The mean of the standard normal distribution is

Question # 9

Sum of the random errors is equal to:

Question # 10

A disadvantage of range is that it is based on

Question # 11

The parameters of hypergeometric distribution are:

Question # 12

The parameters of the binomial distribution are:

Question # 13

Movement in secular trend

Question # 14

Which index number has a wide scope:

Question # 15

A specific value calculated from sample is called

Question # 16

In Random sampling the probability of selecting an item from the population is

Question # 17

The binomial distribution is symmetrical when

Question # 18

The probability of an event cannot be

Question # 19

In a Binomial prob.Distn it is impossible to find:

Question # 20

The grouped data is:

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NAT-I Statistics Chapter 1 Important MCQ's

Sr.# Question Answer
1 If a and b are two constants then var (a+ bx) =
A. ± b var (x)
B. Var (a) ± var (x)
C. b2 var (x)
D. (a±b) var (x)
2 In hypergeometric distribution the trials are:
A. Independent
B. Dependent
C. Both a and b
D. None of these
3 A graph of a cumulative frequency distribution is called:
A. Frequency curve
B. Frequency polygon
C. Ogive
D. Histogram
4 If var (x) =5, var(y) =10, then var (2x + y) is:
A. 10
B. 15
C. 30
D. 25
5 Standard deviation is calculated from harmonic mean:
A. Always
B. Never
C. Often
D. None of them
6 If y = 5x +10 and x is N(10,25) then mean of y is:
A. 50
B. 60
C. 70
D. 135
7 Total angle of pie-chart is
A. 270o
B. 300o
C. 320o
D. 360o
8 The index numbers calculated by considering the relative importance of variables are called:
A. Un-weighted
B. Weighted
C. Simple
D. None
9 The probability of red card out of 52 cards is:
A. 1/4
B. 1/2
C. 4/52
D. Zero
10 The data obtained from college record is
A. Primary data
B. Secondary data
C. Raw data
D. Qualitative data

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