Answer in Statistics and Probability for Cat #251217
October 25th, 2022
If S, J, and B stand for Smith’s, Jones’s, and Brown’s helmets, respectively, then the possible arrangements in which the helmets may be returned and the number of correct matches are
“{SJB, SBJ, JSB, JBS, BSJ, BJS}”
“defarraystretch{1.5}n begin{array}{c:c}n Sample Space & m \ hlinen SJB & 3 \n hdashlinen SBJ & 1 \n hdashlinen JSB & 1 \n hdashlinen BJS & 1 \n hdashlinen JBS & 0 \n hdashlinen BSJ & 0 \nnend{array}”