Question

answer this both questions correctly!!
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Answer 1

iii) >Absolute Error

Absolute error is the magnitude of difference between the measured value and the true value( or mean of all the measurements)

It is denoted by |a|

>Mean Absolute Error

The mean of all the absolute errors is known as mean Absolute error.

It is denoted by |a mean|

>Relative Error

Relative Error is the ratio of absolute error and the true measurement.

>Percentage Error

Percentage Error is the percent of relative Error.

iv) Significant figures are the digits of a number which are certain of their value.

There are certain rules regarding significant figures. By following those rules we can find the number of significant figures in a number.

For example:-

0.025 has 2 significant figures.

>Order of magnitude ,in simple words, is the exponent of 10 when the number is written in the form of scientific notation.

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