Chapter 5 – Extensions and Modifications of Basic Principles.
Precision & Accuracy Precision –How close are the measurements to each other? –Reproducibility Accuracy – How close is a measurement to the true value?
1. 2 Measurement and Significant Figures 3 Measurements Experiments are performed. Numerical values or data are obtained from these measurements.
Numeric Reasoning (1.1). SIGNIFICANT FIGURES - Count from the first non-zero number e.g. State the number of significant figures (s.f.) in the following:
The Real Numbers
ERT 207 ANALYTICAL CHEMISTRY SIGNIFICANT FIGURES AND STANDARD DEVIATION LECTURE 4 13 JAN 2011 MISS NOORULNAJWA DIYANA YAACOB 1.
Working with Significant Figures. Exact Numbers Some numbers are exact, either because: We count them (there are 14 elephants) By definition (1 inch =
Chirp! Chirp! Welcome! Instructor: Anne Yu [email protected]@pomona.edu, SN 109, x74252 Lab Assistant: Jane Xu ‘12.
Chemistry Lecture L.S. 3
Human Heredity 11.3 Human Chromosomes Humans have 46 chromosomes Occurs in 23 pairs 22 pairs are autosomes 2 of the 46 are sex-determining chromosomes.
MENDEL & HEREDITY. Are You Ready For This? Can You… Define the term gamete. Summarize the relationship between chromosomes and genes? Differentiate.
MUTANTS genetic variation in human development Lecture 7 Fall 2006 Bennington College.
