The monthly electric bills in a certain community are normally distributed, with a mean of $245 and a standard distribution of $
55. If there are 461 households in the community, about how many of them have electric bills less than $200?
A. 45
B. 21
C. 95
D. 81
A. 45
B. 21
C. 95
D. 81
2 answers:
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