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 binomial distribution is symmetrical when

Question # 2

The probability of an event cannot be

Question # 3

Basic year weighted index numbers are:

Question # 4

The model letter of the word statistics is:

Question # 5

If all the values are of equal importance then index numbers are called:

Question # 6

Rejecting Ho if Ho is true is

Question # 7

A quantitative variable whose values are countable is called

Question # 8

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

Question # 9

A fair coin is tossed four times the prob.of getting four heads is:

Question # 10

The most suitable average in the construction of index number is

Question # 11

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

Question # 12

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

Question # 13

For a symmetrical distribution:

Question # 14

If y = 5x +10 and x is N(10,25) then mean of y is:

Question # 15

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

Question # 16

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

Question # 17

Sum of random errors is equal to:

Question # 18

E(X - μ)2 =

Question # 19

The graph of time series is called

Question # 20

Which is correct for the binomial distribution:

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NAT-I Statistics Chapter 1 Important MCQ's

Sr.# Question Answer
1 Current year weighted are used as
A. Laspeyr's index number
B. Paasch's index number
C. Fisher ideal index number
D. None of these
2 Sum of the random errors is equal to:
A. 3
B. 2
C. 1
D. 0
3 Probability of an event always lies between
A. -1 and +1
B. -1 and 0
C. 0 and 1
D. 0 and ∞
4 The probability of an event can never be
A. Zero
B. 1
C. 0.5
D. Negative
5 The probability of drawing one green ball from a bag containing 6 red,8 black 10 yellow and one green ball is
A. 1/25
B. 0
C. 4/13
D. 15/20
6 A numerical value computed from sample is called:
A. Parameter
B. Sampling unit
C. Sampling design
D. Statistic
7 The formula used to estimate a parameter is called:
A. Estimate
B. Estimation
C. Bais
D. Estimator
8 Is a normal distribution μ = 10 and σ2 = 25 the mode is
A. 5
B. 10
C. 25
D. 100
9 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
10 Standard deviation is calculated from H.M
A. Always
B. Never
C. Often
D. None of these

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