Consider the following data representing the price of refrigerators (in dollars): 1218, 1253, 1121, 1282, 1261, 1263, 1349, 1390, 1316, 1227, 1140, 1245, 1158, 1168, 1195, 1225, 1161, 1405, 1320, 1405, 1122. Step 6 of 7: Calculate the relative frequency of the third class. Determine your answer as a simplified fraction.

Answer

To calculate the relative frequency of the third class, follow these steps: 1. Identify the third class interval from the provided table, which is 1208–1257. 2. Count how many data points fall within this range (1208 to 1257). Looking at the data list: 1218, 1253, 1227, 1245, 1225. There are 5 values in this class. So, the frequency is 5. 3. Count the total number of data points in the dataset. There are 21 numbers in the list. 4. Calculate the relative frequency by dividing the class frequency by the total number of data points: 5 / 21. 5. Since 5 and 21 have no common factors other than 1, the fraction is already in simplest form. The relative frequency of the third class is 5/21.