NAT-IGS General Science Statistics Hard Test

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

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NAT-IGS General Science Statistics Hard Test

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Question # 1

The difference of the true value of parameter and corresponding value of sample is called

Question # 2

E |X- M| =

Question # 3

The data collected by NADRA to issue computerized identity cards are:

Question # 4

The average value of the lower and upper limits of a class is called:

Question # 5

A hypothesis in which all parameters are specified is called

Question # 6

E(X - μ)2 =

Question # 7

Standard deviation is calculated from harmonic mean:

Question # 8

Statistical inference can be divide into,,,,,,,,,,,,approches

Question # 9

If the null hypothesis is true the probability error is identified by what name

Question # 10

In a set of "n" elements the total number of subsets are:

Question # 11

If 'c' is a non-random variable then E(c) is:

Question # 12

If P(A) = 0.3, P(B) = 0.8, P(A C B)= 0.24, then the events A & B are

Question # 13

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

Question # 14

Sum of deviation from Mean is always

Question # 15

The probability of rejecting Ho when it is true is called

Question # 16

The data which have already been collected by someone are called

Question # 17

Variance is always calculated from:

Question # 18

In binomial distribution trails are:

Question # 19

A numerical value computed from sample is called:

Question # 20

If 'C' is a non-random variable then E (C) is:

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NAT-I Statistics Chapter 1 Important MCQ's

Sr.# Question Answer
1 Statistics must be:
A. Comparable
B. Not comparable
C. Discrete in nature
D. Qualitative in nature
2 A specific value calculated from sample is called
A. Estimator
B. Estimate
C. Estimation
D. Bias
3 A quantitative variable whose values are countable is called
A. Categorical variable
B. Continuous variable
C. Discrete variable
D. None of these
4 For r x c contingency table the number if degrees of freedom equals
A. (r - 1) + ( c -1)
B. (r -1) (c - 1)
C. 1
D. (r x c) -1
5 The sum of the squares of deviation is least form:
A. Mean
B. Mode
C. Median
D. Harmonic mean
6 For a symmetrical distribution:
A. b1 = 0
B. b1 = 3
C. b2 = 3
D. b3 = 3
7 The model letter of the word statistics is:
A. S
B. T
C. S & T
D. I
8 In hypergeometric distribution trials are:
A. Independent
B. Dependent
C. Constant
D. None of these
9 The data which have already been collected by someone are called
A. Secondary data
B. Primary data
C. Arrayed data
D. None of these
10 The harmonic mean of two numbers a and b is:
A. 2ab/ a+ b
B. 2 /  a +b
C. ab / a + b
D. a + b/ ab

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