Pre | MCQs

Explanation

CTRL + A is used to to change pen to arrow while CTRL + P is used to Change Arrow to pen in PowerPoint during Presentation.

Explanation

long double provides higher precision than double and float for storing real numbers.

It allows more digits after the decimal point, making it suitable for high-accuracy calculations.

Explanation

• The metric that is commonly used to evaluate classification models and represents the ratio of correctly predicted positive instances to all positive instances is recall.
• Recall is a measure of a classifier’s completeness, and it is also known as sensitivity, hit rate, or true positive rate (TPR).
• The formula for recall is the number of true positives divided by the sum of true positives and false negatives.

Explanation

None of above is correct order of precedence in formula calculation.

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RY17-012-23

Explanation

won't means will not.

Explanation

In and Into

In = (Located inside or within)

Into = (Indicates entry or insertion)

The girl jumped into the sea.

They were sitting in the room.

Note: “Into” is not used with “Enter” as the sentence becomes superfluous.

She entered the room.

Explanation

In general, we use: at for a POINT.

in for an ENCLOSED SPACE.

Explanation

We use preposition under to indicate beneath of something. 

I hide it under the table. 

Explanation

Prevent someone from something.

Prevent someone from doing something means کسی کو کسی کام سے روکنا

Explanation

Beside means بغل میں

The girl is sitting beside her mother means لڑکی اپنی ماں کے بغل میں بیٹھتی ہے

ND17-7-2023