a community survey by an animal rights organization found that one fith households had two dogs, one fourth had one dog, and the rest had no dogs, if a household is selected at random, what is the expected number of dogs living that house?

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.