# Problem: A calculator displays a result as 1.365 248 0 × 107 kg. The estimated uncertainty in the result is ±2%. How many digits should be included as significant when the result is written down? (a) zero (b) one (c) two (d) three (e) four

###### FREE Expert Solution

According to uncertainty,

$\overline{){{\mathbf{x}}}_{\mathbf{a}\mathbf{c}\mathbf{t}\mathbf{u}\mathbf{a}\mathbf{l}}{\mathbf{=}}{\mathbf{x}}{\mathbf{±}}{\mathbf{∆}}{\mathbf{x}}}$

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###### Problem Details

A calculator displays a result as 1.365 248 0 × 107 kg. The estimated uncertainty in the result is ±2%. How many digits should be included as significant when the result is written down? (a) zero (b) one (c) two (d) three (e) four