Question # 1

The main advantages of using the range as a measure of dispersion is that.

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It is easy to calculate

It is heavily influenced by extreme values.

It can change drastically from one data set to the next

It is determined by only two points in the data set

Hourly temperature recorded by weather brave is the example of:

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Discrete variable

Continuous variable

Qualitative

Both A and B

Second moment abut mean is.

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0

1

variance

Standard deviation

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

If the random variable x denotes the number of heads when three distinct coins are tossed, the x assumes values

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0, 1, 2, 3

1, 3, 3, 1

1, 2, 3

None of these

If an index numebr calculation over 8 years with a base value of 100 gave an index for 1992 of 110, what would be the percentage relative for 1993.

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90.0

13.75

880

110

Range of the ungroup data can be calculate by formula.

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X_m - X_m

X_m - X₀

X₀

X₀ - X_m

Mean deviationis always.

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More than S.D.

Equal to S.D.

Less than S.D.

None of these

The simplest form of the continuous distribution is the.

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Skewed distribution

Kurtic distribution

Binomial distribution

Uniform distribution

Which of the following distribution(s) has 3 parameters.

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Binomial distribution

Hypergeometric distribution

Both of the above

None of these

If the chance of occurance of two events are same then such events are called

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Independent events

Dependent events

Mutually exclusive events

Equally likely events

The data about the weights of plants:

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Discrete data

Qualitative data

Continuous data

Quantitative data

Data used by an agency which orginally collected them are.

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Primary data

Raw data

Secondary data

Grouped data

When all the values in a sereis occur the same numebr of times, then it in not possible to compute the.

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Mean

Median

Mode

Weighted mean

The third quartile is also called

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75^th percentile

Upper quartile

5^th deciles

Both (a) and (b)

If E a and impossible event, then P(E) is.

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0

0.5

1

Impossible

The simple probability of occurrence of an event in called the.

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Joint probability

Conditional probability

Marginal probability

Subjective probability

The smallest and larges value of any given class of frequency distribution are called.

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Class limits

Class interval

Class marks

Class Boundry

More Classes

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Statistics Ics Part 1 Online Test MCQs With Answers

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