Afamily has three children. assuming a boy is as likely as a girl to have been born, what are the following probabilities? two are girls and one is a boy. incorrect: your answer is incorrect. at least 1 is a boy. incorrect: your answer is incorrect.

3/8 , 3/8

Step-by-step explanation:

Assumption: A boy is as likely as a girl

hence P(B)= P(G)= 1/2= 0.5

family has 3 children

find the probability of

A) two girls and a boy.

it can happen in following way

BGG, GGB or GBG

P(BGG)= P(GGB)= P(GBG) =

= 1/8

therefore , probability of two girl and a boy= = 3/8

B) At least One boy

it can happen is in

BGG, BBG, BBB

P(BGG)= P(BBG)= P(BBB) =

= 1/8

therefore , probability of at least one boy= = 3/8