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Score: 0 of 2 pts12 of 16 (16 completo)(X2.4.31The 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 forms whose land and building values per acre are between $1400 and $2000,forms (Round to the nearest whole number as needed)#vaVoMoroEnter your answer in the answer box and then click Check Answer

Respuesta :

Mean value = 1700

Number of farms= 77

Standard dev= 300

Find buildings with value 1400< x < 2000

Then

Estimation is around 68.3%

Between x - sdv and x + sdv

Find 68.3% of 77 = 53 farms

Answer is 53 farms

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