Question

A number, x, rounded to 2 decimal places is 7.42
Write down the error interval for x.​

Answer 1

The error interval for x is:

`[7.415,7.419]`

Explanation:

In order to determine the error interval for x, We have to get the all the number which could be rounded off to 7.42 .

These number can be listed in order such as:

7.415 7.416 7.417 7.418 7.419

Therefore, the error interval for x is:

`[7.415,7.419]`