Question # 1

The mean of a binomial distribution depends on.

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Parability of success

Parababilyt of failure

Number of trials

Both a and c

A set of numerical values assigned to a sample space is called.

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Random sample

Random variable

Random numbers

Random experiment

The procedure of inferring about the population characteristic using the sample is called________.

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Descriptive statistic

Inferenitial statistics

Statistic

Science

What is the probability that a value chosen at random from a particular population is larger than the median of the popultion.

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0.25

0.5

1.0

0.67

For a moderately skewed dsitribution, whihc of the following emprical formula holds.

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M.D. = 4/5(S.D)

Q.D. = 2/3 (S.D)

Q.D . = 5/6 (M.D.)

All of these

Variance of binomial distribution is

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np

√npq

npq

nq

Which pair of measures cannot be calculated when one of numbers in the seriesis zero.

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G.M and A.M

G.M and H.M

H.M and A.M

None of these

The probability distribution of discrete random variable is called is

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Frequency distribution

Probability distribution

Probability mass function

Both (a) and (b)

When x denotes the number of success in binomial experiment it is called.

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Random variable

Binomial random variable

Continuous random variable

Both (B) and (C) but not (A)

First central moment is always.

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0

1

-1

2

If y =-7x then E(y) = ...............

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E(x)

-7X

-7E(X)

Zero

For moderately positively skewed distribution the following relation hold

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Mean > median > mode

Mean=median=mode

Mean < median< mode

None of these

The number of possible outcomes in Bernoulli trial is

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Three

Four

Two

One

Circular test is satisfied by

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Laspeyres index

Paasche's index

Fisher's method

None of these

A coin and die can be thrown together in

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2 ways

12 ways

8 ways

None of these

The minimum classes may be determine by formula.

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C = 1+3, log (n)

c = √n

X_m - X₀

Both A and B

The third quartile is also called

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75^th percentile

Upper quartile

5^th deciles

Both (a) and (b)

If mean = 40 , Mdoe - 42 , then distributiion is.

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4 skew

2 skew

Symmetrical

All of these

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Statistics Ics Part 1 Online Test MCQs With Answers

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