The probability of rolling an even number or a one on a throw of a single die equals _________

A schizophrenic characterized by alternating periods of mute immobility and excited motor activity is referred to as a(n):

a. disorganized schizophrenic. b. undifferentiated schizophrenic. c. paranoid schizophrenic. d. catatonic schizophrenic.

Which of the following correlations would be most likely to reflect the relationship between a child's age and mathematical skills?

A) -.30 B) +.75 C) 0.0 D) -.85