7.1 Significant Digits,Accuracy, And Prescison

Question 1

Rules for significant digits

Answer 1

1. All non-zeros digits are significant.
2. 0 is a significant digit if it is between two significant digits.
3. Leading 0s are not significant.
4. Trailing 0s are significant only if the number contains a decimal point.

Question 2

Accuracy

Answer 2

The number of the significant digits in a number.

Question 3

Precision

Answer 3

The place value of the rightmost significant digit.