Lesson in Statistics and Probability Grade 11

1. LESSON 1:
INTRODUCING

2. Objectives: At the end of the lesson, you
should be able to
Identify questions the could be
answered using a statistical process.
Describe the activities involved in a
statistical process.

3. Motivation
• Think a question that in your mind at this
moment.
• Write it on the board.

4. 1. Statistics as a Tool in
Decision-Making
STATISTICS-defined as a science that
studies data to be able to make
a decision.
-a science involves the
methods of collecting,
processing, summarizing
and analyzing data in order to
provide answer or solutions to an
inquiry.

5. Trivia
The word “STATISTICS” actually comes from the
word “STATE”--- because governments have
been involved in the statistical activities,
especially the conduct of census either for
military or taxation purposes. The need for and
conduct of censuses are recorded in the pages of
holy texts. In the Christian Bible, particularly the
Book of Numbers. God is reported to have
instructed Moses to carry out a census. Another
census mentioned in the Bible is the census
ordered by Caesar Augustus throughout the
entire Roman Empire before the birth of Christ.

6. Statistics enable us to:
 characterize persons, objects, situations and
phenomena
Explain relationships among variables
Formulate objective assessments and
comparisons; and, more importantly
Make evidence-based decisions and
predictions.

7. 2. Statistical Process in Solving
a Problem
Planning or designing the collection of data
to answer statistical questions in a way that
maximizes information content and
minimizes bias
Collecting the data as required in the plan;
Verifying the quality of the data after they
were collected;

8. Summarizing the information extracted from
the data; and
Examining the summary statistics so that
insight and meaningful information can be
produced to support decision-making or
solutions to the question or problem at hand.

9. Assessment
1.Identify which of the following questions are answerable using a statistical
process.
a. What is a typical size of a Filipino family?
b. How many hours in a day?
c. How old is the oldest man residing in the Philippines?
d. Is planet Mars bigger than planet Earth?
e. What is the average wage rate in the country?
f. Would Filipinos prefer eating bananas rather than apple?
g. How long did you sleep last night?
h. How much a newly-hired public school teacher in NCR earns in a
month?
i. How tall is a typical Filipino?
j. Did you eat your breakfast today?
2. For each of the identified questions in Number 1 that are answerable
using a statistical process, describe the activities involved in the process.