leaa than ogive curve ana more than ogive curve
A less than ogive is drawn by plotting the less than frequencies of the given data against their corresponding upper limits of the class intervals and joining the points so obtained by a free hand.
On the other hand, for drawing a more than ogive, we plot the more than frequencies for the given data against their corresponding lower limits of the class intervals. The points so obtained are then joined by a free hand.
A detailed explanation of the topic along with numerical examples and explanatory videos has been covered in our study material. You can refer to the same following the below mentioned path.
Statistics for Economics- Chapter 4 (Presentation of Data)- Lesson 4 (Frequency Diagram and its types).