Indicate whether each of the following examples describes the use of descriptive (D) or inferential (I) statistics by clearly circling D or I.

D I D I

D I D I

In my son's grade-three classroom, 25% of the kids are under the age of eight and 75% are eight or older.

A comparison between placebo and drug treatments has determined that drug X produces approximately a 5% reduction in the severity of symptoms of Alzheimer's patients.

A non-leap year consists of 525,600 minutes.

By examining the browsing habits of individuals last week, a well-known Internet retailer has estimated that 13% of those people who visit their website will make a purchase.