Question 1152079
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            The correct solution is as follows.



<pre>
Use the general formula  of the Probability theory


          P(A U B) = P(A) + P(B) - P(A &#8745; B).


In your case P(A) = 0.69  (weighs more than 230 pounds);

             P(B) = 0.55  (is at least 75 inches tall),

             P(A &#8745; B) = 0.43  (weights more than 230 pounds and is at least 75 inches tall).



Substitute the given data into the formula and calculate


         P(A U B) = 0.69 + 0.55 - 0.43 = 0.81.      <U>ANSWER</U>
</pre>

Solved (correctly).


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The solution by @Boreal is INCORRECT.