Please help me because im doing my math right but i cant get the answer

Use the graph of the sine function y=2sinθ shown below

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

If benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r