At EV, funds with a decimal risk of between 3.51 and 4.49, for example. will have a risk rating of 4. However, as Funds are displayed with a decimal risk to one decimal place, with rounding this means that a 3.51 is rounded down to 3.5 and 4.49 is rounded up to 4.5. However, they will both show as having a risk rating of 4.
Therefore, it is possible to see two funds with a decimal risk of 4.5 where one is a risk 4 and the other is a risk 5 due to one having been rounded down and the other rounded up.