Ordinal numbers are numbers showing order or position.

The word ordinal is defined as a scale of measurement in which the data are arranged in a rank order. When something is ordinal, it pertains to a small or specific picture. Ordinal is the opposite of cardinal. In this context, it means receptive. The positive pole (or extreme) is responsiveness and the negative pole (or extreme) is passivity.

In mathematics, ordinal numbers refer to the adjectives that indicate position or rank, namely first, second, third, etc. In statistics, the word ordinal refers to a classification of groups of data which are arranged according to the underlying continuum, that is, which go from the larger group of data to the smaller group of data. The differences between the ranks, however, may not be equal.

It refers to those elements which are still ordered, but the spacing between them is not necessarily uniform. Apart from the relative positions such as first, second and third, it is also used to compare the healthier position of one group of data over other groups of data.

In mathematics, ordinal numbers refer to the adjectives that indicate position or rank, namely first, second, third, etc. In statistics, the word ordinal refers to a classification of groups of data which are arranged according to the underlying continuum, that is, which go from the larger group of data to the smaller group of data. The differences between the ranks, however, may not be equal.

It refers to those elements which are still ordered, but the spacing between them is not necessarily uniform. Apart from the relative positions such as first, second and third, it is also used to compare the healthier position of one group of data over other groups of data.

Numbers such as 1, 2 and 3 etc are known as CARDINAL numbers.

When relating to a position in a sequence (say 1st, 2nd or 3rd in a race) thes are ORDINAL numbers.

When relating to a position in a sequence (say 1st, 2nd or 3rd in a race) thes are ORDINAL numbers.

Ordinal approach is another name of Indifference curve approach, "Indifference curve is a curve showing same level of satisfaction at different level of consumptions. It is a convex curve downward sloping from left to right on which each every point shows the same level of satisfaction at different level of consumptions.

**It can never be a concave, zig zag and straight curve. Only tow commodities are used by consumer. There should be no change in Income and prices of goods. There is an application of Diminishing Marginal rate of substitution.( DMRS)**__Properties / Characteristics____Schedule__**Comodity/ SUGAR WHEAT Satisfaction****Combinations***X 4 10 100%**Y 5 8 100%**Z 7 5 100%*From the above schedule we see the same level of satisfaction i.e. 100% at different level of consumptions. And if we go to draw the diagram then we find a curve convex to the origin. Here we can see that on attaining 1 unit more of sugar A sacrificed 2 units of Wheat and for getting 2 units more of Sugar A scarified 3 units of B. This sacrificing ratio is called DMRS. And on scarifying each unit of B the satisfaction remains the same. I hope thats enough to understand. In case of further query please let me know.Change 21 to an ordinal number