Frequency distribution refers to a set of frequencies with a  particular set of values into which a statistical population is  grouped. Relative frequency refers to data preâ¦sented in a table  that demonstrates the relative frequency of multiple  non-overlapping classes.
1 The annual average temperature in Florence, Tuscany, Italy is mild at 14.6 degrees Celsius (58.3 degrees Fahrenheit). 2  Average monthly temperatures vary by 18.4 C (33.1 F) which is a slightly low range. 3  The average diurnal temperature variation/ range is 11 C (19.8 F).
In the south, however, prices will drop faster in September even though the mercury takes longer to fall. Temperatures in September vary depending on where you are in Italy, but as a general rule of thumb these are the ranges: Northern Italy: 55-75Â°F (13-24Â°C) Central Italy: 65-80Â°F (18-27Â°C)