Which statement is true about significant digits?

Which statement is true about significant digits?

• A. Central Tendency
• B. Range
• C. Mean
• D. Significant Digits

Answer: (D)

Significant digits express how precise a measurement is. They are the digits in a number that carry information about the measurement’s reliability. Nonzero digits are always significant; zeros between digits are significant; leading zeros are not significant; trailing zeros are significant only if a decimal point is present (or shown by scientific notation). When you multiply or divide measurements, round the result to the number of significant digits in the least precise input. When you add or subtract, align the decimal places and round to the place of the least precise measurement. This concept underpins reporting results honestly, showing what level of precision your measurement actually supports, rather than implying more exactness than is known. Central tendency or range describe data sets rather than the precision of a single measurement, so they don’t capture what significant digits convey.

Significant digits express how precise a measurement is. They are the digits in a number that carry information about the measurement’s reliability. Nonzero digits are always significant; zeros between digits are significant; leading zeros are not significant; trailing zeros are significant only if a decimal point is present (or shown by scientific notation). When you multiply or divide measurements, round the result to the number of significant digits in the least precise input. When you add or subtract, align the decimal places and round to the place of the least precise measurement. This concept underpins reporting results honestly, showing what level of precision your measurement actually supports, rather than implying more exactness than is known. Central tendency or range describe data sets rather than the precision of a single measurement, so they don’t capture what significant digits convey.