The mean value of land and buildings per acre from a sample of farms is

$1800,

with a standard deviation of

$100.

The data set has a bell-shaped distribution. Assume the number of farms in the sample is

80.

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Part 1

(a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between

$1700

and

$1900.

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farms (Round to the nearest whole number as needed.)