A penny is tossed.We observe whether it lands heads up or tails up.Suppose the penny is a fair coin;that is,the probability of heads is one-half and the probability of tails is one-half.What does this mean?
A)Every occurrence of a head must be balanced by a tail in one of the next two or three tosses.
B)If the coin is tossed many,many times,the proportion of tosses that land heads will be approximately one-half,and this proportion will tend to get closer and closer to one-half as the number of tosses increases.
C)Regardless of the number of flips,one-half will be heads and one-half tails.
D)All of the above

Question

Quizplus · Accepted Answer

This means that over the long run, we can expect approximately half of the coin tosses to land heads and half to land tails. It does not mean that every occurrence of a head must be balanced by a tail in the next few tosses or that every flip will always result in exactly half heads and half tails.

A Penny Is Tossed