Question

The Centers for Disease Control and Prevention (CDC) is required by law to pub- lish a report on assisted reproductive technologies (ART). ART includes all fer- tility treatments in which both the egg and the sperm are used. These procedures generally involve removing eggs from a womans ovaries, combining them with sperm in the laboratory, and returning them to the womans body or giving them to another woman.

You are helping to prepare the CDC report and select at random 10 ART cycles for a special review. None of the cycles resulted in a clinical pregnancy. Your manager feels it is impossible to select at random 10 ART cycles that did not result in a clinical pregnancy. Use the pie chart at the right and your knowledge of statistics to determine whether your manager is correct.

How would you determine whether your managers view is correct, that it is impossible to select at random 10 ART cycles that did not result in a clinical pregnancy?

 

 

Answer 1

Probability of not getting 10 ART cycles that did not result in a clinical pregnancy

= 1 – (1 – 0.368)10 = 0.9899

 

Therefore the manager's view is correct it is very difficult (next to impossible) to have 10 random ART cycles that didn't result in clinical pregnancy.

 

Binomial probability distribution best suits the situation.

 

The number of clinical probability distribution is discrete, as the number of cases can only be a whole number.

The number of clinical probability distribution is discrete, as the number of cases can only be a whole number.