Question 866307
Suffer allergic reaction: 20% of men and 30% of women experience an allergic reaction
group consisting of four men and three women
(i) no one {{{(.80^4)(.70)^3}}}
(ii) exactly one person (M 0r F) = {{{(.20)(.80^3)(.70)^3 +(.30)(.80^4)(.70)^2 }}} Note: Addition '0r'