Chapter 2 Terms Flashcards
What are raw scores?
What are raw scores?
What is a frequency table?
A frequency table is a visual depiction of data that shows how often each value occurred; that is, it shows how many scores are at each value.
What is a grouped frequency table?
A grouped frequency table is a visual depiction of data that reports the frequency within each given interval rather than the frequency for each specific
value.
What is a histogram?
A histogram looks like a bar graph but is typically used to depict scale data with the values (or midpoints of intervals) of the variable on the x-axis and the frequencies on the y-axis.
What is a frequency polygon?
A frequency polygon is a line graph with the x-
axis representing values (or midpoints of intervals) and the y- axis representing frequencies; a point is placed at the frequency for each value (or midpoint), and the points are connected.
What is a positive distribution?
A distribution in which the distribution’s tail extends to
the right.
What is a negative distribution?
A distribution in which with negatively skewed
data, the distribution’s tail extends to the left, in a negative direction.
