A statement is said to be a Biconditional Statement if it is a combination of a conditional statement and its converse written in the if and only if form.
From the given statements:
Option A
Conditional Statement: (False) If the US citizen is at least 18 years old, then he votes.
Converse:f a Us S citizen votes, then he is at least 18 years old. (True)
Option B
Conditional Statement: The product of two integers is odd if the two factors
are odd. (True)
Converse: If the two factors are odd, the product of two integers is odd. (True)
Option C
Conditional Statement: If a figure does not have four sides, the figure is not a square. (True)
Converse: If a figure is not a square, it does not have four sides. (False)
Option D
Conditional Statement: A number is a real number if it is a positive integer. (False)
Converse: If it is a positive integer, the number is a real number (True)
Therefore, Option B is a True Biconditional Statement as its Conditional Statement and Converse are both true. If a US citizen votes, then he is at least 18 years old.
Option B
f a US citizen votes, then h
A statement is said to be a Biconditional Statement