To get home, Renae can take one of four buses:
Create the sample space of all the possible ways Renae can get home and do one activity by making a systematic list.
Write the possibilities in an organized way so that you don't skip any.
Use your sample space to find the following probabilities:
Find the numerator by counting from your systematic list.
P(Renae takes an odd-numbered bus)
P(Renae does not write a letter)
P(Renae catches the #
bus and then reads a book)
Does her activity depend on which bus she takes? Explain why or why not.
Look at your list. Do the possible activities change depending on which bus she takes.