39. Calculate the mean, median, and mode of the given data by step-deviation method: Class 75-79 70-74 65-69 60-64 55-59 50-54 45-49 40-44 35-39 30-34 25-29 20-24 Frequency 4 3 2 5 8 11 16 10 8 5 4 4
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The midpoints can be calculated by adding the lower and upper limits of each class interval and dividing by 2. Midpoint of class 75-79 = (75 + 79) / 2 = 77 Midpoint of class 70-74 = (70 + 74) / 2 = 72 Midpoint of class 65-69 = (65 + 69) / 2 = 67 Midpoint of class Show more…
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