Answer:
P=1/65.
Step-by-step explanation:
We knaow that one coin in a collection of 65 has two heads. If a coin, chosen at random from the lot and then tossed, turns up heads 6 times in a row. We calculate the probability that it is the two-headed coin.
We calculate the number of possible combinations:
[tex]C_1^{65}=\frac{65!}{1!(65-1)!}=65[/tex]
Number of favorable combinations is 1.
Therefore, the probability is
P=1/65.