1. Question 1

What is the branch of mathematics dealing with collecting, analyzing, interpreting, and presenting numerical data?

• ❌ Algebra

• ❌ Calculus

• ❌ Pie

• ✅ Statistics

Explanation:
Statistics focuses on understanding and interpreting numerical data.

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2. Question 2

Data Mining is defined as:

• ❌ Filtering data based on predefined criteria

• ❌ Identifying errors in data

• ❌ Preparing raw data for analysis

• ✅ Extracting knowledge from data

Explanation:
Data mining discovers patterns, relationships, and insights from large datasets.

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3. Question 3

What type of data mining operations was R specifically built to handle?

• ❌ Filtering

• ❌ Sorting

• ✅ Classification of data

• ❌ Calculating mean, median, mode

Explanation:
R is widely used for statistical modeling, including classification and clustering.

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4. Question 4

When calculating the middle value of a dataset, what are you calculating?

• ❌ Average

• ❌ Mean

• ✅ Median

• ❌ Mode

Explanation:
The median is the middle value when data is ordered.

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5. Question 5

The general tendency of data to change over time is called:

• ❌ Variation

• ❌ Pattern

• ✅ Trend

• ❌ Anomaly

Explanation:
A trend shows the direction in which data moves over time.

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🧾 Summary Table

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