Calculate the average weight in pounds of all players drafted by Arizona Coyotes.
average weight in pounds = AVG(weight_in_lbs); weight in pounds refers to weight_in_lbs; players refers to PlayerName; drafted by Arizona Coyotes refers to overallby = 'Arizona Coyotes';
SELECT CAST(SUM(T1.weight_in_lbs) AS REAL) / COUNT(T2.ELITEID) FROM weight_info AS T1 INNER JOIN PlayerInfo AS T2 ON T1.weight_id = T2.weight WHERE T2.overallby = 'Arizona Coyotes'