Question # 1

The sum of absolute deviations is a minimum if these deviations are taken from the

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Mean

Mode

Median

All of these

Data classified by attributes are called.

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Continuous data

Quantitative data

Qualitative data

Grouped data

Probability distribution of a continuous random variable can be presented by

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tabular form

Formula

Curve

None of these

The probability of failure is equal to.

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p

1 - q

P - 1

1 - P

If the third moment about mean is zero ( m3 = 0) , then the distribution is.

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Mesokurtic

Positively skewed

Symmetrical

Negatively skewed

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

Which of the following is true for binomial distribution

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Mean > variance

Mean < variance

Mean = variance

Mean + standard deviation

The result of no interest of an experiment is called.

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Contstant

even

Failure

Success

The binomial distribution is negatively skewed if

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P< 1/2

P = 1/2

P > 1/2

P = 1

The mean deviation of dispersion can be negative.

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Often

Sometimes

Always

Never

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 measures of disperesin are chaged by the change of.

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Origin

Scale

Both a and b

None of these

If x is discrete random variable, then the function f (x) is.

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A probability function

A density function

A probability density function

A distribution function

Which of the following is an example of compressed data.

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Array

Frequency distribution

Ogive

Histogram

Graphs of frequency distributions are used because.

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they have a long history in practical applications

They attract attenstion to data pattern

They account for biased or incomplete data

None of thses

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)

E(X ± Y) =..............

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E(X) + E(Y)

E(X) - E (Y)

E(x) ± E (Y)

None of these

Weight of whole earth is.

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Discrete variables

Qualitative variable

Constant

Continuous variable

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Statistics Ics Part 1 Online Test MCQs With Answers

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