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

The hypergeometric distribution has parameters:

Question # 2

The probability of type-1 error is denoted by

Question # 3

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

Question # 4

A misfit person is not selected for the job

Question # 5

The lack of uniformity is called

Question # 6

The midpoint of the group 5,5-7,5 is

Question # 7

In Mesokurtic distribustion

Question # 8

The variance of 5,5,5,5,5,is

Question # 9

In the tossing of two perfect coins to probability at least one head occur is:

Question # 10

Statistic is a characteristic calculated from

Question # 11

If byx < 0 and bxy < 0 then "r"

Question # 12

If for a contingency table d.f = 12 and the no of rows = 4 then the no of columns will be

Question # 13

The data which have already been collected by someone are called

Question # 14

The grouped data is:

Question # 15

An arrangement of data to show the frequency of occurrence is called

Question # 16

If right tail is longer than the left tail,then distribution is called:

Question # 17

The electronic and mechanical components of a computer are known as:

Question # 18

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

Question # 19

If E(q̂) = q then q̂ is called

Question # 20

Is a normal distribution μ = 10 and σ2 = 25 the mode is

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NAT-I Statistics Chapter 1 Important MCQ's

Sr.# Question Answer
1 The value of correlation co-efficient lies between
A. 0 to +1
B. -1 to 0
C. -0.5 to +0.5
D. -1 to +1
2 Accepting Ho /Ho is true
A. No error
B. type I error
C. Type II error
D. A
3 A disadvantage of range is that it is based on
A. Absolute deviation
B. Squared deviations
C. Two extreme observation
4 A variable which takes measurable values is called a
A. Constant
B. Discrete variable
C. Continuous variable
D. Qualitative variable
5 Which index number may be weighted?
A. Simple
B. Compositive
C. Both a and b
D. Fisher
6 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)
7 If E (X) =4, then find arithmetic mean will be:
A. 4
B. 8
C. 0
D. 1
8 The data in their original form are called
A. Secondary data
B. Ordered data
C. Primary data
D. Un-official data
9 Current year quantities are used as weight in
A. Laspeyr's index number
B. Paasche's index number
C. Fisher's index number
D. None of these
10 If E(q̂) = q then q̂ is called
A. Biased estimator
B. Unbiased estimator
C. Positively biased
D. Negatively biased

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