The probability of not getting a tail on a single coin flip is \( \frac{3}{4} \), because each coin has a \( \frac{1}{2} \) chance of landing heads and another \( \frac{1}{2} \) chance of landing tails. Hence, the combined probability of getting heads on both coins for each toss is \( \left( \frac{3}{4} \right)^{50} \) for 50 tosses.