This document introduces basic concepts in statistics including: 1. Statistics involves collecting, organizing, analyzing, and interpreting numerical data. 2. There are two main types of data: quantitative data expressed as numbers, and qualitative data expressed as descriptions. 3. Quantitative data can be further classified as discrete which can be counted, or continuous which can be measured.

1. Introduction to Statistics

2. Objectives:
At the end of the lesson, you should be able to:
1. describe statistics and the basic terms used
in statistics.
2. differentiates qualitative and quantitative
data, and continuous and discrete variable
3. identify the uses and importance of Statistics
clearly

3. Can you guess?

5. Synonym!

6. Statistics
-a branch of Mathematics that deals
with the collection, organization,
presentation, analysis, and
interpretation of data.

7. Common Terms in Statistics
A population is a complete collection of all
elements (scores, people…) to be studied.
A sample is a sub-collection of elements
drawn from a population.

10. Data
-a collection of facts or set of
information or observation under study

11. Types of Data
1. Quantitative data -deals with
numbers.
Examples: age, IQ scores, height,
weight, income

12. Types of Data
2. Qualitative data -deals with
description.
Examples: gender, citizenship,
educational attainment, religion

13. Lets Practice
1. age _________________
2. cell phone number __________________
3. marital status ___________________
4. citizenship _________________
5. religion _________________
Directions: Classify the following as qualitative or quantitative.
Write the answer on the space provided for.

14. Quantitative Data
1.Discrete Data- can be counted
Examples: number of siblings
number of days and
usual school allowance

15. Quantitative Data
2.Continous Data- all values between any
to specific values like 0.5 and data that can
be measured
Examples: weight
height
body temperature

16. Keep Practicing!
____________ 1. Air temperature
____________ 2. Number of typewriters
____________ 3. Number of mobile phones
____________ 4. Length of Rod
____________ 5. Number of DVD’s rented
Directions: Classify the following as discrete or continuous. Write
the answer on the space provided for.

17. Statistics in Real Life
• In education, it is frequently used to
describe test results.
• In Science, the data resulting from
experiments must be collected and analyzed.
Diseases are controlled through analysis
designed to anticipate epidemics.

18. Statistics in Real Life
• Manufacturers can provide better product
at reasonable costs through the use of
statistical quality control techniques.
• In government, many kinds of statistical
data are collected all the time.

19. What I Have Learned
1.Statistics is the science of collection, organization,
presentation, analysis, and
interpretation of numerical data.
2. The two branches of statistics are descriptive
statistics and inferential statistics.

20. What I Have Learned
3. Population is the totality of all elements having
the characteristic under consideration while a
sample is a subgroup of the population.
4. The two types of variables are qualitative and
quantitative. Further, the two types of quantitative
variables are discrete and continuous

21. Mistakes Allow Thinking to Happen