- #1
Larrytsai
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According to a research company survey, 70% of telephone subscrivers have an answering machine. If a telemarketing campaign contacts 200 telephone subscribers, what is the probability that 150 or more iwll have an answering machine?
Im lost for the tree diagram but and i have no clue for what method but my attempt was 0.7x 200 = 140 then 140/150, 1-(140/150)
Im lost for the tree diagram but and i have no clue for what method but my attempt was 0.7x 200 = 140 then 140/150, 1-(140/150)