You have mentioned two things. One is that yor are good at accounting though your statistics is poor. Since Accounting is your strength you can opt for Finance. You can try to work on statistics part through learning and practice. If you get into HR or marketing you will have to first take time to understand these subjects.
So if your feel you are confused
1. Try to select a career in the field which you are familiar.
2. Have developed interest / liking
3. Which you feel can help you to grow in your future career.
I strongly feel you should go in accounting and can build other related areas like statistics.
All the Best
You may check out my reply on career planning in the following link. ..
Hope this will help you to decide right career. For any further query, you may write to me.