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

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The figure shows a normal distribution with mean m and standard deviation d, including approximate percents of

Question:

2% m-2d 14% 34% m-d m 34% 14% m+d m+2d 2%

Step by Step Answer:

D 2 m2d 14 34 34 md m 14 md m 2d 2 The mean value of 500 homes in a cou...View the full answer

Acing The New SAT Math

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