During a 2-month period in 2002, 72 babies were born at the Tompkins Community Hospital in upstate New York. The table shows how many babies were born on each day of the week.
a) If births are uniformly distributed across all days of the week, how many would you expect on each day?
b) Only 7 births occurred on a Monday. Does this indicate that women might be less likely to give birth on a Monday? Explain.
c) Are the 17 births on Tuesdays unusually high? Explain.
d) Can you think of any reasons why births may not occur completely at random?