Table: race_results_95
Columns: year
entrant
chassis
engine
points

Question: Name the average points for chassis of stevens and year less than 1950
SQL: SELECT AVG("points") FROM race_results_95 WHERE "chassis" = 'stevens' AND "year" < 1950

Question: Name the least points for chassis of kurtis kraft 500a
SQL: SELECT MIN("points") FROM race_results_95 WHERE "chassis" = 'kurtis kraft 500a'

Question: Name the total number of year for chassis of kurtis kraft 4000 and points more than 2
SQL: SELECT COUNT("year") FROM race_results_95 WHERE "chassis" = 'kurtis kraft 4000' AND "points" > 2