Stats

The contingency table shows the results of a survey that asked 234 ballerinos if they preferred shoe A or B. If a ballerino is selected at random, what is the probability they prefer shoe A or are Amateur? Round to three decimal places. A B Total Amateur 39 43 82 Professional 81 71 152 Total 120 114 234 O 0.697 0.863 0.167 O 0.325