The following data represent the recent sales price (in $1,000s) of 24 homes in a Midwestern city (See the Excel Data File.) Suppose the data are grouped into five classes, and one of them will be "115 up to 140"-that is, {x; 115 ≤ x

Question

The following data represent the recent sales price (in $1,000s) of 24 homes in a Midwestern city  (See the Excel Data File.) Suppose the data are grouped into five classes, and one of them will be "115 up to 140"-that is, {x; 115 ≤ x < 140}. The relative frequency of this class is ________.
A) 6/24 
B) 7/24 
C) 6 
D) 7

Quizplus · Accepted Answer

To find the relative frequency of the "115 up to 140" class, we need to first find the total number of data points in that class. From the given data, we can see that 7 homes have prices between 115 and 140 (i.e., x is greater than or equal to 115 but less than 140).

Next, we need to divide the total number of data points in that class by the total number of data points in the entire dataset. There are 24 homes in the dataset, so the relative frequency of the "115 up to 140" class is:

7 / 24 = 0.2917

Rounded to four decimal places, this is approximately 0.2917. Therefore, the correct answer is B) 7/24.

The Following Data Represent the Recent Sales Price (In $1,000s)