Answer:
Significant figures are all reliably known digits in a measurement together with the first doubtful or estimated digit.
Question 62
State the rules for zeros in significant figures.
Answer:
Zeros between non-zero digits are significant, while leading zeros are not. Trailing zeros to the right of a decimal are significant.
Question 63
Differentiate between precision and accuracy.
Answer:
Precision describes how close repeated measurements are to one another. Accuracy describes how close a measured value is to the accepted or true value.