Practice Final B12
bsmith
Does anyone know how to do this problem? i dont even know where to begin
Lilyhui: March 19, 2015, 5:29 p.m.
You can draw a horizontal line, the left endpoint is 0 and the right endpoint is 3. The prob of landing on the left of 1 on the line is 1/3 ( this would be your probability) and you throw the marble 9 times (this is n ). E[X] =np which is 9 x(1/3) =3
bsmith: March 19, 2015, 9:19 p.m.
thank u lily hui <3