Question

The following table gives the weight of 120 articles:

Weight (in kg): | 0-10 | 10-20 | 20-30 | 30-40| 40-50 | 50-60|

Number of students: |14| 17| 22| 26| 23| 18|

Change the distribution to a ‘more than type’ distribution and draw its ogive.
(class 10 CBSE SAMPLE PAPER 2017-18 MATHS)

Answer 1

[ Figure is in the attachment]

Cumulative frequency:

Cumulative frequency is defined as a consecutive sum of frequencies.

Cumulative frequency distribution is of two  types: less than type and more than type.

An ogive is a shape consisting of a concave arc flowing into a convex arcs.


More than type Ogive:

It is the graph drawn between lower limits and cumulative frequencies of a distribution. Here we mark the points with lower limit and X coordinate and corresponding cumulative frequency and Y coordinate and join them by freehand smooth curve. This type of graph is cumulated download.


Weight in kg                cumulative frequency

More than or equal to 0               120

More than or equal to 10             106

More than or equal to 20              89

More than or equal to 30                67

More than or equal to 40                41

More than or equal to 50                18


HOPE THIS WILL HELP YOU...