Relative Frequency Histogram. A relative frequency histogram uses the same information as a frequency histogram but compares each class interval to the total number of items. For example, the first interval ($1 to $5) contains 8 out of the total of 32 items, so the relative frequency of the first class interval is (see Table 1). The only difference between a frequency histogram and a relative frequency histogram is that the vertical axis uses relative or proportional frequency instead of simple frequency (see Figure 1). Figure1 .Relative frequency histogram of items sold at a garage sale.
1 The average temperature in Valparaiso, Chile is mild at 14 degrees Celsius (57.2 degrees Fahrenheit).2  Mean monthly temperatures have a variation of 5.6 C (10.1 F) which is a very low range. 3  There is a variation/ range of mean diurnal temperatures of 8.5 C (15.3 F). The average temperature in Valparaiso, Chile is mild at 14 degrees Celsius (57.2 degrees Fahrenheit).
Key weather averages for Perugia in April. 1  17. 17Â°C max day temperature. 2  6. 6 hours of sunshine per day. 3  13. 13 days with some rainfall. 4  5. 5Â°C min night temperature. 5  13. 13 hours of daylight per day. 6  0. No heat & humidity. 7  71. 71 mm of monthly rainfall. 8  5. 5 (Moderate) UV index.