A study by Hewitt Associates in 2009 found that 60% of U.S. workers between the ages of 20 to 29 cash out their 401(K) retirement accounts when they lose their jobs or move to a new employer. If five U.S. workers between the ages of 20 to 29 who lost their jobs or moved to a new employer are selected at random, find the probability that a. exactly 1 person cashed out their 401(K) retirement account. b. fewer than 3 people cashed out their 401(K) retirement account