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

Sum of deviation of observation from their mean cannot be

Question # 2

A binomial random variable can assume only the values

Question # 3

A constant can take values:

Question # 4

When the values are not of equal importance then we compute

Question # 5

The probability of rejecting Ho when it is true is called

Question # 6

In binomial distribution trails are:

Question # 7

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

Question # 8

Which is correct for the binomial distribution:

Question # 9

Selection of cricket team by the selectors is a process of

Question # 10

Var (2x + 3) is:

Question # 11

The sum of deviations from arithmetic mean is:

Question # 12

A random variable is of types:

Question # 13

The graph of time series is called:

Question # 14

Which index number may be weighted?

Question # 15

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

Question # 16

Weight of earth is:

Question # 17

For the standardized normal variate P(0Σ z Σ1) =...............

Question # 18

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

Question # 19

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

Question # 20

Components of time series are

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NAT-I Statistics Chapter 1 Important MCQ's

Sr.# Question Answer
1 If P(A) = 0.7,P(B) = 0.5,A and B are independent then P(A C B) =
A. 0.35
B. 1.2
C. 0.85
D. None of these
2 In a set of "n" elements the total number of subsets are:
A. 2n
B. n2
C. n!
D. None of these
3 Variance is always calculated from:
A. Mean
B. Median
C. Geometric mean
D. Mode
4 Which of the following cannot be null hypothesis:
A. qΣ q
B. q3 q
C. q = q
D. q1 q
5 A disadvantage of range is that it is based on
A. Absolute deviation
B. Squared deviations
C. Two extreme observation
6 Most frequent value of the data is called:
A. Mean
B. G.M
C. Mode
D. None of these
7 Total angle of pie-chart is
A. 270o
B. 300o
C. 320o
D. 360o
8 Given N = 5 and n = 3 in simple random sampling with replacement how many possible samples are there?
A. 10
B. 125
C. 60
D. 15
9 Statistic is a characteristic calculated from
A. Population data
B. Sample data
C. Arrayed data
D. Fictitious data
10 Bias is
A. Cumulative
B. Decumulative
C. Decreasing
D. None of these

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