Solution

162528

Problem / game
Last one standing Back to problem
First name
Penny & Matilda
School
Frederick Irwin Anglican School, Perth
Country
Australia
Age
0

Yes they could, it's unlikely but there is still a possibility that they can flip 6 heads in a row.
4, 5 or 6. We tested this using the interactive table and we got 5 on the first try, 6 on the second and 4 on the last.
The average for this is 5, so the last person standing would've flipped around 5 times.