Answer to Question #200405 in Economics for Mere

Question

According to the New Zealand department of labor, approximately 4% of all workers in Auckland are unemployed. If you were conducting a random telephone survey in Auckland, what would be the probability of getting two or fewer unemployed workers in a sample of 20? 

Answer 1

By the Bernoulli formula

$$P_{1,20}+P_{2,20}=0.368+0.009=0.377$$