A newly married couple decides to continue having children until they have one of each sex. If the events of having a boy and a girl are independent and equiprobable, how many children should this couple expect? Hint: Note that / i=1 iri = r/(1 r)2, |r| < 1.
Tuesday, January 10 th • Statistics: a field of study; science of learning from data o What are data § Information – could be numbers (weight, income) or words (gender, race) o How do we learn from it § Involves analyzing data and making inferences • Example 1: Aspirin and Heart Attacks Harvard Medical School conducted a study to investigate whether regular aspirin intake reduces heart attacks. Half of the total 22,000 male