# SOLUTION: Hello- Here is the question... Each year (365 days) the fire department receives 270 emergency calls on average. In a given 7-day week, what is the probability of receiving: a)

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 Question 353972: Hello- Here is the question... Each year (365 days) the fire department receives 270 emergency calls on average. In a given 7-day week, what is the probability of receiving: a) no calls? b) more than one call? c) one call or less? d) at least two calls? I have been trying to use binomial distribution, but am confused??? Would you please help?Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!binomial should work P(c) = 270/365 ___ P(n) = 1 - (270/365) [P(c) + P(n)]^7 a) (7C0)[P(n)]^7 b) 1 - {(7C1)[(P(c))(P(n))^6] + (7C0)[P(n)]^7 c) {(7C1)[(P(c))(P(n))^6] + (7C0)[P(n)]^7 d) same as b)