An individual flips nine fair coins. if she allows only a head or a tail with each coin,
a. what is the probability they all will fall heads?
b. what is the probability there will be seven or more heads?
c. what is the probability there will be a result as extreme as or more extreme than seven heads?

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.

The answer is b: step 2.

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