Consider the following frequency table representing the scores on a test. Determine the lower class boundary for the second class.

Answer

1. Identify the second class in the frequency table: The table lists classes of scores. The first class is 50-57, and the second class is 58-65. 2. Understand the concept of class boundaries: Class boundaries are the midpoints between the upper limit of one class and the lower limit of the next class. They are used to close the gap between classes in a continuous data set. 3. Locate the relevant limits: - The upper limit of the first class is 57. - The lower limit of the second class is 58. 4. Calculate the boundary: To find the lower class boundary of the second class, find the average of the upper limit of the previous class and the lower limit of current class: (57 + 58) / 2 = 57.5. Therefore, the lower class boundary for the second class is 57.5.