The mean value of land and buildings per acre from a

sample of farms is ​$1800

1800​, with a standard deviation of ​$200

200. The data set has a​ bell-shaped distribution. Assume the number of farms in the sample is 80

80.

​(a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between ​$1400

1400 and ​$2200

2200.

nothing

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

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