I think the answer is A, <span>Choosing 3 flavors of ice cream out of 15 for an ice cream sundae.</span>
Answer = -8
Using number line, start with -3
-3 -1 = -4
-4 -1 = -5
.......
-7 -1 = -8
-3 -4 -5 -6 -7 -8
Answer:
The probability of failure of trial 11 is 
Step-by-step explanation:
Generally one the attributes of a binomial experiment is that the probability of success and failure is constant every trial so given from the question that the probability of success is 0.84 for trial 7 , then the probability of failure of trial 7 will be evaluated as

=> 
And from the attribute stated above the probability of failure of trial 11 is 
<span>625 written as a power of 5 = 5^4
because
5^4 = (5) * (5) *(5) * (5) =625
answer is
</span><span>D.5^4</span>