Which one of the following is a formal group?

________ refers to analytical techniques that combine data on consumer expenditures and other socioeconomic factors with geographic information

A) Geodemography B) Senior market C) Consumer identity renaissance D) Perceived age

The number of tires sold at a car garage varies randomly between 0 and 4 each hour, with equally probability for each possible outcome. What set of random numbers (on the 01-100 scale) would tire sales of 2 be assigned?

A) 01 through 20 B) 21 through 40 C) 41 through 60 D) 51 through 75 E) 26 through 50