Cost Estimating

In a Range Estimating problem, it was found that the expected project cost is $$20,000,000,$ and the standard deviation of the project cost $=$$$500,000.$

What is the probability that the project cost will be between $$19,500,000$ & $$20,000,000?$

$66\%$

$16\%$

$34\%$

$50\%$