Psychology and Human Behavior
In many U.S. families, both parents work outside the home, while children spend time at daycare centers or are cared for by other relatives. The mean amount of time fathers spend with their child(ren) is 7.3 hours per week.12 Suppose this time distribution is approximately normal with standard deviation 0.75 hour, and suppose a father is randomly selected.
a. What is the probability that the father spends at least 8 hours with his child in a given week?
b. What is the probability that the father spends between 6 and 7 hours with his child in a given week?
c. If the child sees his or her father for less than 6 hours per week, the parental bond is weakened. What is the probability that this special bond will be weakened in a given week?
d. What is the probability that the father will spend at least 9 hours with his child in each of five randomly selected weeks?