The figure shows a normal distribution with mean m and standard deviation d, including approximate percents of
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The figure shows a normal distribution with mean m and standard deviation d, including approximate percents of the distribution corresponding to the six regions shown.
The mean value of 500 homes in a county is $225,000 and the standard deviation is $25,000.
Approximately how many of the homes in the county are between $175,000 and $225,000?
A) 310
B) 340
C) 380
D) 410
Transcribed Image Text:
2% m-2d 14% 34% m-d m 34% 14% m+d m+2d 2%
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