Question

What is mean by Significant figures ​

Answer 1

Answer:The term significant figures refers to the number of important single digits (0 through 9 inclusive) in the coefficient of an expression in scientific notation . The number of significant figures in an expression indicates the confidence or precision with which an engineer or scientist states a quantity.

Answer 2

Answer:

The term significant figures refers to the number of important single digits (0 through 9 inclusive) in the coefficient of an expression in scientific notation . The number of significant figures in an expression indicates the confidence or precision with which an engineer or scientist states a quantity.

Concise rules

All non-zero digits are significant: 1, 2, 3, 4, 5, 6, 7, 8, 9. Zeros between non-zero digits are significant: 102, 2005, 50009.

Rules for Numbers WITHOUT a Decimal Point

START counting for sig. figs. On the FIRST non-zero digit.

STOP counting for sig. figs. On the LAST non-zero digit.

Non-zero digits are ALWAYS significant.

Zeroes in between two non-zero digits are significant. All other zeroes are insignificant.