SOLUTION: The mean amount spent by a family of four on food per month is $500, with a standard deviation of $75. Assuming that food costs are normally distributed, what is the probability t

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Question 363043: The mean amount spent by a family of four on food per month is $500, with a standard deviation of $75. Assuming that food costs are normally distributed, what is the probability that a family spends less than $410/month?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, 

*Note: z+=+%28x+-+mu%29%2Fsigma



z+=+%28410+-+500%29%2F75

z = -1.2

P(family spends less than $410/month) = .115