CREATE TABLE people (People_ID INT, Sex TEXT, Name TEXT, Date_of_Birth TEXT, Height FLOAT, Weight FLOAT)
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)

Visualize a bar chart about the distribution of Sex and the average of Height , and group by attribute Sex, order x-axis from high to low order please.
SELECT Sex, AVG(Height) FROM people GROUP BY Sex ORDER BY Sex DESC
SELECT "Sex", AVG("Height") FROM "people" GROUP BY "Sex" ORDER BY "Sex" DESC NULLS LAST