If a psychologist summarizes data for a variable in a frequency table, but finds that there are so many values for the variable that the table is too cumbersome to be useful, the next step would be to make a

A normal distribution must

a. have outliers. b. be symmetric. c. be positively skewed. d. be negatively skewed.

Each day, thousands of new cells originate deep within the brain and then move to the surface to link up with other neurons to become part of the brain's circuitry through a process known as

a. neural induction. b. depolarization. c. neurogenesis. d. neural resiliency.