A Z score of -1 would correspond to approximately what percentile?

According to dynamic perception, 1-year-old Diane would most prefer to look at

a brightly colored beach ball. a picture of Barney. a mobile spinning over her head. the puzzle being held by her Aunt Cynthia.

Your 43-year-old uncle has his own automobile repair shop. Whenever you have car problems all you have to do is describe the noise that your car is making and he can accurately diagnose the problem on the phone Psychologists would argue that this is an example of his ____

a. expertise b. fluid intelligence c. wisdom d. advanced spatial orientation