I need help with this question. I realize that I cannot use the normal form of the standard deviation formula. If possible, could you also list all formulas that can be used to calculate standard deviation? For this problem specifically, I don't know how to connect the population proportion of 0.35 to the standard deviation of the sample proportion of 0.04.

Problem 7: Let X be a binomial random variable with p = 0.35. What size sample would be required to make the standard deviation of the proportion 13 equal to 0.04