PRC-2 · Chapter 7 · Question 37 of 60
When drawing a frequency polygon, the data points are mathematically plotted at the intersection of the frequencies and the:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) Class midpoints (class marks)
Explanation
A frequency polygon is created by plotting coordinate points at the exact midpoints of each class interval (which corresponds to the top center of each histogram bar) and connecting them with straight lines.
More Data - Collection and Representation MCQs
- Q39In a frequency distribution featuring unequal class intervals, the height of a bar in a histogram must be rendered proportional to its:
- Q40The very last value calculated in a 'less than' cumulative frequency distribution column will logically always equal:
- Q41Which specific graphical chart is best utilized to compare the varied components of two or more different categorical variables…
- Q42When raw, unorganized statistical data is manually arranged into ascending or descending order, the resulting structured format is called…
- Q43Visually, a standard 'more than' ogive graph generally slopes in which direction?