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If used well, it can give a quick answer which may be sufficiently accurate for the purpose.

Suppose I have 24 dollars and I want to buy 5 books which cost 4.97 each. I estimate 5 books@5 dollars = 25 dollars. No, I have not got enough money. I do not need to know the exact amount I would have needed to determine that I have not got enough.

Q: How is estimation useful?

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Estimation

When a quick approximate answer will suffice.

give me examples of estimate

If an estimation, or estimate, is a guess, an approximate estimation is a rougher guess.

Rounding is a form of estimation.

Related questions

when is the estimation of product is a useful tool

Estimation

individuals

Estimation

When a quick approximate answer will suffice.

give me examples of estimate

If an estimation, or estimate, is a guess, an approximate estimation is a rougher guess.

What is the estimation 328000

Front end estimation- An estimation method in which the front digits are added or subtracted

A person who is blind does channel estimation.

Estimation is a quick of working out roughly what the answer is

Rounding is a form of estimation.