On a ranch, a rancher can place a loop of rope, called a lasso, once in every 2 throws around a cow’s neck. What is the probability that the rancher will be able to place a lasso around a cow’s neck at least once in 6 attempts? Choose the correct option.
A) 3/4 B) 7/8 C) 15/16 D) 31/32 E) 63/64
P(missing all 6)=(1/2)^6=1/64   P(success on at least one attempt)=1-1/64=63/64   The answer is 63/64.
<result>E</result>
On a ranch, a rancher can place a loop of rope, called a lasso, once in every 2 throws around a cow’s neck. What is the probability that the rancher will be able to place a lasso around a cow’s neck at least once in 6 attempts?