Guest 711249--I made a major mistake!
Red (orange) cats, with or without white, are statistically likely to be male. There are genetic reasons for this, but I give up when confronted with terms like alleles. Male cats are often red and white, but almost never red and black, or red, black, and white. And when they are, it is usually due to a genetic abnormality that renders them infertile--usually, but not always. Sorry.