Answer: To persuade
Explanation:
The speaker is implying that there will be unpleasant consequences if one does not study the problem carefully, and they are trying to persuade you to do so to avoid unnecessary consequences.
The mode stands for the number in a series found the most.
In this series you have:
three 4s
two 17s
one 27
one 29
one 20
one 24
and one 34
The mode, or number most found, is 4.