Posted by Raj on Thursday, October 9, 2008 at 11:12pm.
To find the probability that 8 have hypertension is .2353 to the 8th power. However, since it is "at least 8", it must also include 9 and 10 (.2353^9 and .2353^10).
To find the probability of either 8, 9 or 10, add the three products.
I hope this helps. Thanks for asking.
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