Male pattern baldness is an X-linked trait, while widow's peak is an autosomal dominant trait. Beth's father had male pattern baldness and she does...

Male pattern baldness is an X-linked trait, while widow's peak is an autosomal dominant trait. Beth's father had male pattern baldness and she does not have a widow's peak. Ron's mother did not have a widow's peak, but he has both a widow's peak and male pattern baldness. What are the chances that Beth and Ron could have a daughter with both a widow's peak and male pattern baldness? 

Please explain this clearly via probability.