$[$SQL Week $2$ Question $100-021]$ What is the average weight of all creatures for which the name contains the string $$us$?$ The phrase can be anywhere in the name $$ so $$Usman$$ would count, as would $$Beusaleth$$ and $$McManus$.($Your database may vary; these names may or may not be in your version of the database.$)$ Note your answer to four decimal places.