A food delivery service is studying its delivery times.  For a sample of 10 deliveries, the times were:  32, 28, 35, 32, 30, 32, 29, 30, 35, 28. What is the mode of the delivery times?

 A normal sinus arrhythmia occurs when heart rate:

A logistics manager calculates a probability of 0.12 that a shipment will be delayed due to weather. What is the probability that it will not be delayed due to weather? (Enter a decimal value.  For example, you would use .35, instead of 35%.)

A logistics analyst measures the loading times (in minutes) for three different warehouses and wants to know if their average loading times differ. What hypothesis test should be used?

A real estate firm wants to visualize property sales across different U.S. states. What chart would be most appropriate?

A clinic pilots a new scheduling system and gathers feedback from just 9 patients. They want to report a margin of error around the average satisfaction score. How does bootstrapping help in this case?

 A malocclusion, where one side of the mandible or maxilla is disproportionate to its other side, is known as:

A digital product team is tracking the number of software bugs reported each day. What type of random variable is this?

A college is analyzing the number of student advising sessions held weekly across departments. They want to spot which departments have more variability in advising activity. Which chart would be most appropriate?

A business analyst creates a function to return customer retention rate. What will this code print?