1. The problem involves understanding the mantissa in binary and verifying the equivalence of the given binary numbers. 2. A mantissa in binary is the fractional part of a number in base 2, typically after the binary point. 3. The given mantissa is 011011102, which appears to have a digit '2' that is invalid in binary (only 0 and 1 are allowed). 4. The other numbers given are 11010011011102 and 11010, which are valid binary numbers. 5. Since 011011102 contains a '2', it is not a valid binary number, so the equality cannot be correct. 6. Therefore, the statement is incorrect because the mantissa must only contain 0s and 1s. 7. In summary, the mantissa 011011102 is invalid, so it cannot equal 11010011011102 or 11010.