Answer to Question #30930 in Algebra for Allison

Two representatives are chosen at random from a group of 180 students that has 90 girls and 90 boys. What is the probability that the representatives selected are either both boys or both girls?
Choices: A.) 90/180 x 89/179 B.) 2/90+2/90 C.)2 x 90/180 x 89/179 D.) 2 x 2/90 x 2/88