Answer:
50% probability
Step-by-step explanation:
A regular coin has 2 sides. Flipping the coin gives you a 50% probability of it landing on either side. Since All the coins have at least 1 side being heads and the coin was chosen at random without looking at it then this probability remains 50%, even though you already got 10 heads in a row it doesn't change the probability of this current flip.
**The probability of you choosing the double sided head from the bag is a separate question with a different probability**
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