If the standard deviation of a population increases what else must necessarily increase

At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.

Name the most appropriate metric unit for each measurement like a length of an carrot

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be