Probability and statistics

Abstract

You may have first encountered the principles of Mendelian genetics in a very simplified form. You learned that, if G and g are a pair of genes, a mating of Gg and gg parents will produce two kinds of offspring, Gg and gg in nearly equal numbers, and a mating of Gg and Gg parents will produce two or three kinds of offspring near a ratio of 3:1 or of 1:2:1, depending on whether or not G is dominant tog. As a first step in symbolising these statements, you would have learned to write.