This would be: 0, 0, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 4, 5, 6
Now, strike off one number from each side (so 0, then 6, then 0, then 5) until you are only left with one or two numbers.
If you are left with one number, that is your median!
If you are left with two numbers, than you add them together, then divide that number by 2 (for example if you were left with 7 and 8, 7+8=15. 15/2=7 1/2)
In this case, you are left with one number, 2, so 2 is your median. I hope this helped!
Answer: The odds of getting tails twice in a row are 1/2 * 1/2 = 1/4. So 25% of the time you'll get heads twice in a row. But, if you've already flipped a coin 99 times, and gotten heads each time, then the odds of your next flip being heads is still just 50:50.