Posted by **Raj** on Thursday, October 9, 2008 at 11:12pm.

The percentage of adults who have been told at some point that they have hyptertension is 23.53%. If 10 adults are randomly selected, what is the probability that at least 8 have been told that they have hypertension?

- Statistics -
**PsyDAG**, Friday, October 10, 2008 at 10:53am
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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