Question 574660
n = 15 and p = 0.3.
<pre>
The normal approximation is reasonable for a binomial distribution
whenever this inequality is met:

                              n·p·(1-p) &#8807; 10

So we substitute for n and p

                          15·0.3·(1-.3) &#8807; 10
                               4.5·(.7) &#8807; 10
                                   3.15 &#8807; 10

That is false so the normal approximation is not 
reasonable for this binomial distribution

Edwin</pre>