"The probability that a seed will sprout is 3/4. If 7 seeds are planted, find, to the nearest ten-thousandth, the probability that at least 5 will sprout."(adsbygoogle = window.adsbygoogle || []).push({});

The answer is .7564, but I don't know how to get there. I tried (3/4^5) + (3/4^6) + (3/4^7), but that doesn't work. Neither does (3/4*5) + (3/4*6) +(3/4*7)... am I overthinking the question, or is there a formula involved that I don't know?

Thanks!

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# Stuck on probability question

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