Problem solving 1

Here you should read “Illusions” chapters: (19, 20 & 21) from this book : Kahneman, D., (2011), Thinking, Fast and Slow, Farrar, Straus and Giroux: New York ISBN 978-0-374-27563-1 (2013 Reprint:ISBN: 978-037453355-7)
do two pages summery about it.