Question # 1

In computer studies RAM stands for

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Ready any Memory

Read Actual memory

Random access memory

Reach at memory

Keyboard mouse and scanner are the ........devices

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Input

Output

Logical

None of these

A decimal number system has base

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2

8

10

16

The data obtained from college record is

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Primary data

Secondary data

Raw data

Qualitative data

If E(q̂) = q then q̂ is called

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Biased estimator

Unbiased estimator

Positively biased

Negatively biased

A constant can take values:

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Fixed

Not fixed

Zero

None of these

If two regression coefficients are 0.8 and 0.2 then correlation coefficient is

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0.16

-0.16

0.40

-0.40

A specific value calculated from sample is called

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Estimator

Estimate

Estimation

Bias

y = ax + b, then mode (y) = ---------

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Mode (x) a

Mode (x) + b

a mode (x)

None of these

Sum of random errors is equal to:

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Zero

2

3

None of these

The geometric mean of the values 2,4,-3,8 is:

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4

-3

Zero

None of these

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