Question # 1

A set of points in a rectangular coordinate system, where each point represents an observed pair of values is called

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least square regression

scatter diagram

pie graph

regression coefficient

List of all the units of the population is called______.

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Random sampling

Bias

Sampling frame

Probability sampling

Study of the population is called_______.

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Parameter

Error

Statistic

Census

The probability density function has ------------------ value for every value of x.

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negative

positive

minimum

maximum

The relationship that describes the dependence of the expected value of the dependent random variable for a given value of the independent non-random variable is called

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equation

relation

ratio

regression

The graph of time series is called:

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Histogram

Historigram

Straight line

Ogive

1 kb = _____________ bytes

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10

100

1000

10,000

Total probability under the normal curve is

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1

0

-1

∞

Monitors, PC projectors and sound systems are

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soft copy output devices

real copy output devices

raw copy output devices

hardcopy output devices

The moment Coefficient of kurtosis is

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β₁

β₂

Zero

m₂

The following statistic are unbiased estimators:

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The Sample mean

S² = Σ(X - X)²/n-1

The sample proportion

All the above

P ( | Z | > a) =

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2ø(a) - 1

ø(a)

2 ø (-a)

1-ø(a)

A hypothesis that specifies all the value of parameter is called:

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Statistical hypothesis

Simple hypothesis

Composite hypothesis

None of these

Probability distribution of a statistic is called:

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Sampling

Parameter

Data

Sampling distribution

Arithmetic operations are carried out by_______ units:

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CPU

RAM

ALU

ROM

A complete computer system has________ parts.

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2

3

4

5

A complete list of elements in a population is called

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population

sampling design

sampling frame

sampling unit

The method of least square gives too much weight to extremely large deviations from the

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population

parameter

sample

trend

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