1. A bag contains marbles of different colours. 30 % of them are blue and 40 % are green. You take one marble randomly from the bag, return it to the bag, then take another one. What is the probability that both marbles are green or both marbles are blue? 2. Event A occurs with the probability of 0.2 and event B with the probability of 0.7. The two events are independent. What is the probability that neither event will occur? 3. The ice hockey player Marko Anttila scores a goal with each penalty shot at the same probability of 60%. He makes four penalty shots in a row. What is the probability that he scores exactly two goals? 4. In the previous question, what is the expected value of goals?

1. A bag contains marbles of different colours. 30 % of them are blue and 40 % are green. You take one marble randomly from the bag, return it to the bag, then take another one. What is the probability that both marbles are green or both marbles are blue? 2. Event A occurs with the probability of 0.2 and event B with the probability of 0.7. The two events are independent. What is the probability that neither event will occur? 3. The ice hockey player Marko Anttila scores a goal with each penalty shot at the same probability of 60%. He makes four penalty shots in a row. What is the probability that he scores exactly two goals? 4. In the previous question, what is the expected value of goals?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks