the mean value of land and buildings per acre from a sample of farms is $1800, with a standard deviation of…

the mean value of land and buildings per acre from a sample of farms is $1800, with a standard deviation of $300. the data set has a bell - shaped distribution. using the empirical rule, determine which of the following farm whose land and building values per acre are given, are unusual (more than two standard deviations from the mean). are any of the data values very unusual (more than three standard deviations from the mean)? $1890 $2483 $2013 $873 $2208 $2181 which of the farms are unusual (more than two standard deviations from the mean)? select all that apply a. $2483 b. $1890 c. $873 d. $2181 e. $2013 f. $2208

the mean value of land and buildings per acre from a sample of farms is $1800, with a standard deviation of $300. the data set has a bell - shaped distribution. using the empirical rule, determine which of the following farm whose land and building values per acre are given, are unusual (more than two standard deviations from the mean). are any of the data values very unusual (more than three standard deviations from the mean)? $1890 $2483 $2013 $873 $2208 $2181 which of the farms are unusual (more than two standard deviations from the mean)? select all that apply a. $2483 b. $1890 c. $873 d. $2181 e. $2013 f. $2208

Answer

Explanation:

Step1: Calculate lower limit for 2 - std dev

The formula for the lower limit is $\mu - 2\sigma$, where $\mu = 1800$ and $\sigma=300$. So, $1800-2\times300=1800 - 600=1200$.

Step2: Calculate upper limit for 2 - std dev

The formula for the upper limit is $\mu + 2\sigma$. So, $1800+2\times300=1800 + 600 = 2400$.

Step3: Identify unusual values

Values less than 1200 or greater than 2400 are unusual. Among the given values, $873<1200$ and $2483>2400$.

Answer:

A. $2483 C. $873