Defects are classified as A, B and C and the following probabilities have been If random variable X: no. of nails has ( − 101.02) 2 = 0.0396 then mean of random variable is equal to and ( 2 ) = and variance of random variable is equal to .

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.