Consider the following frequency table representing the distribution of the length of a morning walk with the dog (in miles). Determine the midpoint for the fifth class.

Answer

To find the midpoint for a specific class in a frequency distribution table, you use the formula: Midpoint = (Lower Class Limit + Upper Class Limit) / 2. First, identify the fifth class from the table. The classes listed are: 1st: 0.27–0.36, 2nd: 0.37–0.46, 3rd: 0.47–0.56, 4th: 0.57–0.66, 5th: 0.67–0.76. For the fifth class, the lower limit is 0.67 and the upper limit is 0.76. Applying the formula: Midpoint = (0.67 + 0.76) / 2 = 1.43 / 2 = 0.715. Thus, the midpoint for the fifth class is 0.715.