If the population standard deviation is 19.0 and the sample size is 19, then the standard error equals _________

The concept of theory of mind is relevant to the topic of reading because:

a. people need to think about how to read. b. children have great trouble reading because they don't know how their mind works when they first begin to read. c. adults who are illiterate were taught by the whole-word approach to reading. d. readers frequently try to think about the motivations of characters in the stories they read.

Summer and Freddy are walking through the woods late at night. "It's so dark out here, we could walk over a cliff without even knowing it or get attacked by a bear!" says Freddy,

"We should be asleep in bed instead of walking around at night." Freddy's comment reflects the logic behind which explanation of why we sleep? A) activation-synthesis B) preserve and protect C) restore and repair D) problem-solving