In a relative frequency histogram, what does the area of each bar specifically represent?

Which of the following best explains why frequency density is necessary when class widths are unequal?

True or False: To draw a cumulative frequency curve (ogive), the cumulative frequencies must be plotted against the class midpoints on the horizontal axis.

A researcher is studying the eye colors of a population. Which of the following statements best describes why the mean cannot be used to summarize this data?

A company presents a bar chart of its annual growth but omits the data for a year when the company faced a major loss. This is an example of which statistical pitfall?