1 Shiny and dry surface-when it starts going bad, it gets a slimy greyish coating. 2  Fresh odour-it can also smell like melon or cucumber. 3  If it's bad, it will smell rotten, like a sour dishcloth. 4  An even, light surface-the fish is bad if it has yellow spots and transparent parts on the surface.he fish you buy in the shops isn't always as fresh as it should be. But it can be difficult to ascertain when the fish actually starts going bad. Today's methods of ensuring freshness aren't good enough because they only measure one indicator of whether the fish is fresh, such as texture, smell or colour.
Definition of FREQUENCY DISTRIBUTION. : an arrangement of statistical data that exhibits the frequency of the occurrence of the values of a variable. See frequency distribution defined for kids. ADVERTISEMENT.
Frequency distribution is how often something occurs within a group of separate categories or ranges. Say you had a list of exam sco â¦ res from a class of students. You might want to find out how many people got between 0% and 10%, how many got between 11% and 20%, how many got between 21% and 30%, and so on.