Question

_______________ is a graphic representation of a frequency distribution.
a) Frequency Curve
b) Class curve
c) Frequency Distribution Curve
d) None of these

Answer 1

Hint: Frequency Curve - Frequency curve is obtained by joining the points of frequency polygon by a freehand smoothed curve.
Class Curve - A simple method for curving grades is to add the same amount of points to each student's score.
Frequency Distribution Curve - A frequency distribution is a representation, either in a graphical or tabular format, that displays the number of observations within a given interval.

Complete step-by-step answer:
Frequency curve is obtained by joining the points of frequency polygon by a freehand smoothed curve.To plot a frequency curve without using histogram, we need to plot the frequency of the class against its class marks and join the points with line segments.
A simple method for curving grades is to add the same amount of points to each student's score. A common method is to find the difference between the highest grade in the class and the highest possible score and add that many points. Example: Curve a test score.
A frequency distribution is a representation, either in a graphical or tabular format, that displays the number of observations within a given interval. The interval size depends on the data being analyzed and the goals of the analyst. Frequency distributions are typically used within a statistical context.
None of these is correct. So the correct answer is d.

Note: Histogram. A two dimensional graphical representation of a continuous frequency distribution is called a histogram. That is, in histogram rectangles are erected on the class intervals of the distribution. The areas of the rectangle are proportional to the frequencies.