The statements given below are marked as Assertion (A) and Reason (B):

A: It is important to introduce data representation and analysis in the primary stage and to strengthen it in the upper primary stage.

B: Data analysis exposes children at primary level to uncertainty and changeability in information as opposed to the fixed nature of mathematical facts they mostly study.

Choose the correct option.

The correct option is: A is true and B is the correct reason of A.

Let us analyze the given statements step-by-step:

Analysis of Assertion (A):
Assertion (A) states: "It is important to introduce data representation and analysis in the primary stage and to strengthen it in the upper primary stage."
This statement is true. Introducing data handling (representation and analysis) at the primary level helps students develop essential statistical literacy early. It allows them to collect, organize, and interpret simple data (such as lists, pictographs, or simple bar graphs). Strengthening these skills in the upper primary stage builds a foundation for more advanced topics like probability, statistics, and algebraic modeling.

Analysis of Reason (B):
Reason (B) states: "Data analysis exposes children at primary level to uncertainty and changeability in information as opposed to the fixed nature of mathematical facts they mostly study."
This statement is also true. In early mathematics education, children are primarily exposed to deterministic, fixed concepts (such as 2 + 3 = 5, which never changes). Data analysis, however, introduces real-world variability, where data points can change, and information is not always static or fixed. This exposure helps them understand uncertainty, variability, and real-world contexts.

Connection between Assertion (A) and Reason (B):
Why is it important to introduce data representation and analysis early (Assertion A)? It is precisely because it helps transition children's thinking from purely fixed mathematical facts to understanding real-world variability and uncertainty (Reason B). Therefore, Reason (B) provides the correct logical explanation for why Assertion (A) is a crucial pedagogical recommendation.