How do you draw a less than a cumulative frequency curve?
How do you draw a less than a cumulative frequency curve?
How to draw less than cumulative frequency curve:
- Take a graph paper and mark the upper-class limits along the x-axis and the corresponding cumulative frequencies along the y-axis.
- Join these points successively by line segments, we will get a polygon, known as a cumulative frequency polygon.
What is the point of intersection of less than ogive curve and more than ogive curve?
From this point, if we draw a perpendicular on the x-axis, the point at which it cuts the x-axis gives us the median. Thus, the abscissa of the point of intersection of less than type and of the more than type cumulative curves of a grouped data gives its median. Hence, the correct answer is option (b).
How do you find the median with less than ogive?
To find the median on ogive, follow these steps:
- Plot the points on the graph and join them with lines.
- Find the value of N/2.
- Mark this value in the Cumulative frequency scale (y axis).
- Join this value to the line formed by plotting the points with dotted line .
What is the other name of C * * * * * * * * * frequency curve?
Answer: Ogive is another name for cumulative frequency curve.
What should be the frequency of 30 40 in this case?
Thus, the frequency of the class 30 – 40 is 4.
When two curves of ogive intersect the point of intersection provides?
Description for Correct answer: The point of intersection of the two types of 0 gives the median. i.e, The x co-ordinate of the point of intersection the o gives is the median.
What is less than cumulative frequency?
There are two types of cumulative frequency distributions. Less than cumulative frequency distribution: It is obtained by adding successively the frequencies of all the previous classes including the class against which it is written. The cumulate is started from the lowest to the highest size.
Which is used to calculate median?
To calculate the median. Arrange your numbers in numerical order. Count how many numbers you have. If you have an odd number, divide by 2 and round up to get the position of the median number.
Why is it called an ogive?
The ogive for the normal distribution resembles one side of an Arabesque or ogival arch, which is likely the origin of its name.