A perfectly balanced coin is tossed 6 times, and tails appears on all six tosses. Then, on the seventh trial
A) tail can not appear.
B) head has a larger chance of appearing than tail.
C) tail has a better chance of appearing than head.
D) tail has same chance of appearing as the head.

Question

Quizplus · Accepted Answer

The outcomes of previous tosses have no effect on future tosses when using a balanced coin. Therefore, the probability of getting tails or heads on the seventh trial is still 0.5, and there is an equal chance of getting either. Thus, the correct choice is D, as there is an equal chance of getting tails or heads on the seventh trial.

A Perfectly Balanced Coin Is Tossed 6 Times, and Tails