What does 10% mean?

This means that when the absolute value of the difference between the actual value and the standard value does not exceed 10%, it belongs to the normal error range.

Example:

1, a certain kind of alarm clock, the 24-hour error is 10S. It shows that it is normal for this alarm clock to run in the range of 10S fast/10s slow every day.

2, a kind of steel bar, the length is 200 cm+5 cm+5 cm. It shows that the length of this type of reinforcement is in the range of 195cm to 205cm, which is normal.

3. A certain type of iron plate, with a thickness of 20 mm 2 mm, shows that the thickness of this iron plate is in the range of 18mm to 22mm, which is normal.

Extended content

Definition of "":

In mathematics, if |a|=2 (absolute value), the actual value of a is 2. Numbers greater than 0 are called positive numbers. Positive numbers are usually preceded by a "+"symbol, which can usually be omitted. There are countless kinds of positive numbers, including positive integers, positive fractions and positive irrational numbers. Numbers less than 0 are called negative numbers, and negative numbers and positive numbers represent quantities with opposite meanings. Negative numbers are marked with a negative sign "-"and a positive number.

Example:

The range of 1 and 1 is between-1 and 1.

The range of 2 and 4 is between -4 and 4.

The range of 3 and 6 is between -6 and 6.

4. The range of 12 is between-12 and12.

5. The range of 14 is between-14 and14.

Reference content

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