cynthia rounds a number, x,to one decimal place. the result is 6.3. Write down the error interval for x

Question

cynthia rounds a number, x,to one decimal place. the result is 6.3.
Write down the error interval for x

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Answers ( No )

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    2021-09-10T08:08:02+00:00

    The answer is: 6.25\leq6.3<6.35

    The explanation is shown below:

    1. Cynthia rounds the number, which is identified as x, to one decimal place and the result is 6.3.

    2. Based on this, we know that x could have been between 6.25 and 6.35. Therefore, the error interval for x is given by:

     6.25\leq6.3<6.35

    Where \leq indicates that the value 6.25 is included and < indicates that the value 6.35 is not included (Because if x had been exactly 6.35, Cynthia would round up to 6.4).

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