The first step is to determine how many classes you want to have. Next, you subtract the lowest value in the data set from the highest value in the data set and then you divide by the number of classes that you want to have: Example 1: Group the following raw data into ten classes.
Which type of snake typically has oval shaped head and round eyes? As a general rule of thumb, non-poisionous snakes usually have oval shaped heads and round eyes. Venomous snakes tend to have more angular heads and eyes. Nearly impossibl â¦ e to answer here, many snakes have oval shaped heads and most of the harmless snakes have round pupils. One venomous snake that would fit this category is the Coral snake. Which type of snake typically has oval-shaped heads and round eyes?
The grass snake is the largest species of British snake, and is identified by its olive green body and darkish spots or streaks on the flanks. However, colouration can vary.Grass snakes have a distinctive yellow and black collar behind the head and have round pupils.They can often be confused with the adder which has a more thick-set body and a distinct zigzag down its back, and it also has a vertically slit pupil. The adder is venomous, whereas the grass snake is not.ound in lowland areas of Britain, the grass snake is widespread and common in some areas of the south and south east of England, absent from Scotland and rare in central Wales. It is absent from Ireland.