Question

If you tossed a coin 10 times, what is the probability of landing on tails every time

Answer 1

For a fair coin, the probability of tails is 1/2 or 0.5, so the probability of all tails in 10 tosess is (1/2)^10 = 1/1024 = 0.0009765625 

Answer 2

You have a 1/2 chance of it landing on tails, separately, each time.

(1/2)/10=.05

5/100

Divide both sides by 5.

1/20

You have a 1/20 chance that you will land on tails every time.

I hope this helps!
~kaikers