SOLUTION: The mean value of land and buildings per acre from a sample of farms is ​$1700 ​, with a standard deviation of ​$200 . The data set has a​ bell-shaped

Algebra ->  Probability-and-statistics -> SOLUTION: The mean value of land and buildings per acre from a sample of farms is ​$1700 ​, with a standard deviation of ​$200 . The data set has a​ bell-shaped      Log On


   

Question 1123016: The mean value of land and buildings per acre from a sample of farms is ​$1700
​,
with a standard deviation of ​$200
.
The data set has a​ bell-shaped distribution. Assume the number of farms in the sample is 71
.
​(a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between ​$1500

and ​$1900
.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
This is between -1 and +1 sd
The empirical rule says that 68% of the distribution will be in this area, or 71*0.68, or 48 farms.