CREATE TABLE candidate (Candidate_ID INT, People_ID INT, Poll_Source TEXT, Date TEXT, Support_rate FLOAT, Consider_rate FLOAT, Oppose_rate FLOAT, Unsure_rate FLOAT)
CREATE TABLE people (People_ID INT, Sex TEXT, Name TEXT, Date_of_Birth TEXT, Height FLOAT, Weight FLOAT)

Show me about the distribution of Sex and the average of Height , and group by attribute Sex in a bar chart.
SELECT Sex, AVG(Height) FROM people GROUP BY Sex
SELECT "Sex", AVG("Height") FROM "people" GROUP BY "Sex"