First you solve for X then substitute the number you got for X and then solve for Y.
The answer to sin 37/85 is 0.423529411764706
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Answer: 0.9754</h3>
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Explanation:
p = 0.58 = probability HR rep says to follow up within two weeks
n = 7 = sample size
Let's calculate the binomial P(x) value for x = 0 which will tell us the probability of having a sample with 0 reps recommending the follow up within two weeks.

If we were to randomly select a sample of n = 7 HR managers, then there's roughly a 2.305% chance that x = 0 of that group will say to follow up within two weeks. This is when there's a 58% chance of each individual rep of saying "yes".
Repeat for x = 1 and you should find that P(1) = 0.022285 approximately.
Then we can say this:

If we selected a sample of n = 7 HR reps, there's roughly a 97.54% chance that 2 or more reps will recommend following up within 2 weeks.