Three mutually exclusive events occur with probabilities Upper P left parenthesis Upper E 1 right parenthesisPE1equals=0.350.35, Upper P left parenthesis Upper E 2 right parenthesisPE2equals=0.200.20, and Upper P left parenthesis Upper E 3 right parenthesisPE3equals=0.450.45. Other probabilities are Upper P left parenthesis B|E 1 right parenthesisPB|E1equals=0.220.22, Upper P left parenthesis B|E 2 right parenthesisPB|E2equals=0.230.23, and Upper P left parenthesis B|E 3 right parenthesisPB|E3equals=0.550.55. Complete parts a through c below. Question content area bottom Part 1 a. Compute Upper P left parenthesis Upper E 1 |B right parenthesisPE1|B. enter your response here (Round to four decimal places as needed.)