Acouple plans to have four children. using a tree diagram , obtain the sample space. list the elements that make up the sample space. (use "b" for "boy" and "g" for "girl.")
a. bbbg, bbgb, bbgg, bgbb, bgbg, bggb, bggg, gbbb, gbbg, gbgb, gbgg, ggbb, ggbg, gggb
b. , bbbg, bbgb, bbgg, bgbb, bgbg, bggb, bggg, gbbb, gbbg, gbgb, gbgg, ggbb, ggbg, gggb,
c. , bbb, bb, b
d. , bbbg, bbgg, bggg,