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).
Summer is when Florence enjoys its warmest weather, with average temperatures rising from 22Â°C in June, up to 25Â°C in July before falling down to 24Â°C in August. Daily highs and lows change in a similar way, starting off at 28Â°C/17Â°C in June, peaking at 31Â°C/19Â°C in July and falling down to 31Â°C/18Â°C in August.