EXAM 2 QUESTIONS WITH 100%
CORRECT ANSWERS [ GRADED A+]
• Central Tendency - ✔✔The descriptive statistic that best represents the
center of a data set, the particular value that ll the other data seem to be
gathering around
• Mean - ✔✔The arithmetic average of a group of scores; calculated by
summing all the scores in a data set and then dividing this sum by the
total number of scores
• Statistic - ✔✔A number based on a sample taken from a population;
usually symbolized by Latin letters
©morren 2025/2026.Year published 2026.
, • Parameter - ✔✔A number based on the whole population; usually
symbolized by Greek letters
• Median - ✔✔The middle score of all the scores in a sample when the
scores are arranged in ascending order; if there is no single middle score,
average the two middle scores
• Mode - ✔✔The most common score of all the scores in a sample
• Unimodal - ✔✔Distribution that has one mode, or most common score
• Bimodal - ✔✔Distribution that has two modes, or most common scores
• Multimodal - ✔✔Distribution that has more than two modes; or most
common scores
©morren 2025/2026.Year published 2026.