Are you coming here to visit your wife or to live with her?
does she live with her current employer? If she does, she will have to ask her employer If you and your daughter are allowed to stay in their house.
whether you're coming here for good or just to visit, your wife must provide a clear evidences that she have accomodation for you available, financial such a bank statements, payslips or letter from her employer and most important is her visa status.
You asked, what's your chance of getting a visa? Well, If you provide all the evidences that embassy asked then your chance is 50%.
