Posted by **KiKi** on Sunday, April 25, 2010 at 9:24pm.

The number of complaints received by a business bureau can be represented by the following probability distribution. Find the expected number of complaints per day.

complaints per day -0,1,2,3,4,5

probability-0.01,0.11,0.26,0.28,0.19,0.12

can someone please help me figure out where to start here?