The region under a standard normal curve less than z = 0.05 is shaded. what is the area of this region? use your standard normal table. enter your answer in the box.

Pr(z<0.05) = 0.5199

Step-by-step explanation:

We are required to determine the region under a standard normal curve less than z = 0.05. The value 0.05 is a z-score. The area of this region is equivalent to the following probability;

Pr(z<0.05)

In a standard normal curve, this is the region to the left of 0.05. Using the standard normal tables, this cumulative probability is equal to;

Pr(z<0.05) = 0.5199

The function f(x)=x3+20x2+16x+320