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The mean value of land and buildings per acre from a sample of farms is $1700,...

The mean value of land and buildings per acre from a sample of farms is $1700, with a standard deviation of ​$300.

The data set has a​ bell-shaped distribution. Assume the number of farms in the sample is 77.

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

​$1400 and $2000.

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

​(b) If 22 additional farms were​ sampled, about how many of these additional farms would you expect to have land and building values between $1400 per acre and ​$2000 per​ acre?

_____ farms out of 22 ​(Round to the nearest whole number as​ needed.)

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