Answer to Question #289931 in Statistics and Probability for Daniyal

Question

At a convention there are 7 mathematics instructors, 5 computer science instructors, 3 statistics instructors, and 4 science instructors. If an instructor is selected, find the probability of getting a science instructor or a math instructor

Answer 1

Total number of people at the convention =19

Probability of getting a science instructor or a maths instructor is.

$=\frac{4}{19}+\frac{7}{19}\\ =\frac{11}{19}\\$