Samuel may either take a bus or walk to work B represents bus, and W represents walk. He
works three days in a row.
What is the sample space of his mode of transportation to work for these days?
{BW, WB}
{BB, BW, WB, WW}
{BBB, BBW, BWB, BWW, WWW, WWB, WBW, WBB}
{B, W}