Question 898775
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Hi
30(no errors) 20(with errors)
auditor inspects five vouchers at random
b) Find P(X=0) = {{{(30C5)/(50C5)}}}
 c) Find P(X=1)= {{{(30C4)(20C1)/(50C5)}}}
 d) Find P(X>=3)= {{{ (30C2)(20C3)/(50C5) +(30C1)(20C4)/(50C5) + (30C0)(20C5)/(50C5) }}}