Answer
Answer: 0.7392
Work Step by Step
Want to find P( z < 0.64) + P(z > 3.415)
1) Find P(z <0.64) = 0.7389
This value can be read directly off the standard normal distribution table.
2) Find P(z > 3.415) = 0.0003
This value can be found using technology
3) P(z < 0.64) + P( z > 3.415) = 0.0003 + 0.7389 = 0.7392