Population and Sample

​POPULATION

​Mathematics 7 - Quarter 4
Racer Ann M. Gonzales

​and

​SAMPLES

​LEARNING OBJECTIVES

​At the end of the lesson, the learners should be able to:
1. Describe the population and sample.
2. Identify the population and possible samples in a problem.

TRUTH or TYPE

​Direction: Read the statements carefully. Answer "TRUTH" when the statement is true and if it is wrong explain why it is not true.

Open Ended

Xhyindie wants to get some data on the arm span of all the teachers in his school. “Measure using a tape measurent the arm span of all the teachers in his school” is the best thing that Xhyindie should do to get the most reliable and valid data.

Open Ended

A statistical instrument has to be costly and hi-tech.

Open Ended

In statistics, a statistical instrument is the term being used for a measurement device to acquire data.

Open Ended

Statistics can help the student in cleaning the classroom.

Open Ended

Ian plans to study the data on the sports preferences of grade 7 students. Asking about whether the student likes swimming is a valid question that she can use.

"Group Yourselves"

​Direction: The teacher groups the class according to the following. React with an accurate emoji based on what category the teacher says.

BSED Math 3
REACT WAVE EMOJI

Civil Status

​Single - FIST BOMB EMOJI
Taken - HEART EMOJI
Live-In - COUPLE EMOJI
Married - RING EMOJI

GENDER

​Male - TREE EMOJI
Female - FLOWER EMOJI

AGE

​17-20: THUMBS UP EMOJI
21-24 : IN LOVE EMOJI

HAIR COLOR

​Black - H APPY FACE
Blonde - BLESSED
Other - FIREWORKS

Multiple Choice

A survey on the most likable teachers in the junior high schools of the municipality of Alfonso.

What is Junior High School teachers of the municipality of Alfonso?

• POPULATION

• SAMPLE

Multiple Choice

A survey on the most likable teachers in the junior high schools of the municipality of Alfonso.

What is the possible sample?

• Junior high school teachers of public schools

• College of Manila

Multiple Choice

The study habits of high school students in the municipality of Laurel.

What is the possible sample?

• high school students in the municipality of Laurel

• private high school students in the municipality of Laurel

We PAIRmanent!

​Direction: Find your partner. Identify the POPULATION and 2 POSSIBLE SAMPLES in the following research titles. WRITE YOUR NAME AND YOUR PARTNER BEFORE THE ANSWER.

Open Ended

A survey of the most popular sports of the South Cluster of province of Batangas.

Open Ended

The opinions of parents about the K to 12 Curriculum.

Open Ended

The educational qualifications of secondary school teacher.

POPULATION and SAMPLE

​POPULATION

What is population?

Open Ended

What is population?

POPULATION

​ The complete set of persons or objects that possess some common characteristics that is of interest to the researchers.

Example: People of PUP - Alfonso Campus

How can you know the population of something?

Open Ended

How can you know the population of something?

​SAMPLE

What is sample?

It is defined as a representative unit of target population which is to be worked upon by researchers during their study.
Example:
Population: People of PUP - Alfonso Campus
Samples: 1) Students
2) Designees
3) Staffs
4) Faculties

​SAMPLE

1. A survey of Filipino millennials showed that 70% of the respondents own or have ready access to a smartphone.
Population: Filipino millennials
Sample: Filipino millennials in Batangas who own or have ready access to a
smartphone.

2. A survey of BSED Math 3 students in PUP Alfonso showed that 12.5% have their own family and children.
Population: BSED Math 3 students in PUP Alfonso
Sample: Boys of BSED Math 3 in PUP Alfonso who have their own families and children.

3. A survey of girls students in the Philippines showed that 85% browse and purchase online at least once a week.
Population: all girls in the Philippines who browse or purchase online
Sample: Girls in Alfonso who browse and purchase online

Each group can provide an interesting piece about the following:
The owner of Xhyn-Xhai's company is investigating to determine whether her employees would prefer cooler water or bottled water.

The content of your piece should answer and include the following questions:
1. What is population and samples on your own words?
2. Identify the population and possible samples.

​GROUP ACTIVITY

Each group can provide an interesting piece about the following content of your piece should answer and include the following questions:
1. What is population and samples on your own words?
2. Identify the population and possible samples.

GROUP 1 - Poem
GROUP 2 - Song
GROUP 3 - Essay

​GROUP ACTIVITY

​CRITERIA
Content - 10%
Presentation - 5%
Cooperation - 5%
TOTAL = 20%

1. What do you call in the collection of information or facts obtained from any form of research; that can be obtained from responses, measurements, observations, or merely counting?
2. What is the first step in an investigation, research, or an inquiry; process of gathering data related to a statistical question or problem?
3. A collection of individual units proposed for study.
4. A portion of the population data.

​GENERALIZATION

Read the following questions and statements carefully. Write your answer on the Google form provided.

https://docs.google.com/forms/d/e/1FAIpQLSc0M1vAntzqFXGC9Yi4l7fviAqEUqcHFv7kp_zBPp3K2IifyA/viewform?usp=pp_url

​QUIZ

1. A school administrator is trying to determine the percentage of students who work while in school. What is the population?
2. A researcher is trying to know the relationship between the educational attainment of parents and their occupation in the municipality of Alfonso. What are the data needed in this problem?
3. A teacher is trying to find out the best technique to motivate students to love Math. Find the possible outcomes.

B. Compare and contrast a population from a sample.

​QUIZ

1. Clip or copy an article about a survey conducted locally. Highlight the population and underline the sample. Compare and contrast the population and the sample of the survey.
2. Study: Classification of Data

​ASSIGNMENT

​THANK YOU !!

​Racer Ann M. Gonzales
PRE-SERVICE TEACHER