A survey found that 12 out of 30 people preferred bacon over sausage. According to this survey, what percent of people prefer ba
1 answer:
Given
A survey found that 12 out of 30 people preferred bacon over sausage.
Find out the what percent of people prefer bacon over sausage.
To proof
As given in the question
survey found that 12 out of 30 people preferred bacon over sausage.
Total number of people = 30
people preferred bacon over sausage = 12
Formula
put the value in the formula
solve the above
percent of people prefer bacon over sausage = 40 %
Hence proved
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Definition 1: A relation is any subset of a Cartesian product. For instance, a subset of , called a "binary relation from A to B," is a collection of ordered pairs (a,b) with first components from A and second components from B, and, in particular, a subset of
is called a "relation on A."
Definition 2: A function is a relation that associates each element x of a set X to a single element y of another set Y (possibly the same set). A function is uniquely represented by its graph which is the set of all ordered pairs (x, f (x)).
From these definitions you can see that every function is a relation from X to Y, but not via versa (because you can consider relation - here for one x exist two y).
Answer: Correct choice is B.