2. DID YOU KNOW THAT…
According to a study , about 39% of the population of Thailand uses a
smartphone while 54% of the population of Singapore uses it, which
makes Singapore the country with the highest proportion of
smartphone users in the world. Do you know how the figures of 39%
and 54% were obtained?
Figures like 39% and 54% are obtained through a process of COLLECTION,
ORGANIZATION, DISPLAY and INTERPRETATION of data in various ways
The above study shows an example of how statistics may be applied to daily
life.
3. Statistical Questions
A question that can be answered and its
answer must be more than a single
response according to the fact or opinions.
Its answer can be obtained from collecting
and classifying, calculating or analyzing basic
data.
4. Statistical Questions
Worked Example: Determine if the following questions are statistical questions or
NOT.
1. How old are you?
- Not statistical. It can be answer by a single response (your age) with no variability
in data.
2. What is the average height of the students in your class?
- Statistical since it requires collecting data with variability
3. Does it rain more in Thailand than in Singapore?
- Statistical since it requires collecting data with variability
4. How many students are there in your class?
- Not statistical . It can be answer by single response (number of students in your
class)
5. Statistical Questions
Look at the table below and make some question based from the given data.
Title: Number of Agricultural Households in the 4 Provinces in Thailand
Answer:
A) What is the total number of agricultural households in the 4 provinces?
B) What is the average of agricultural households in the 4 provinces?
C) Which province has the greatest number of agricultural households?
D) How many more household does Phuket has compared to Phitsanulok?
Provinces Number of Agricultural Households
Phitsanulok 15,789
Phra Nakhon Si Ayutthaya 14,897
Phrae 13,236
Phuket 16,356
7. DATA COLLECTION
Data
– refers to facts, figures or any
information that can be collected and
analyze to derive conclusions. It can be
collected in the form of numbers or
texts.
8. TYPES OF DATA COLLECTION
1. RECORDING – involves recording the task assigned to you.
Example , your task is to take care of hens and record their
eggs. The data recorded should include the amount of food
given to the hens each week, and the number of eggs
collected each day.
Example: Record the total number of students who are
absent per week for the month of June.
9. TYPES OF DATA COLLECTION
2. OBSERVATION – observer is tasked to look, listen and
understand the situation at hand and record any data as a
result of the observation. It is used often to study behavioral
patterns of different species.
Example: Observe the behavior of your classmates in the
classroom. How many are very noisy, playful, bully, helpful
and good leader.
10. TYPES OF DATA COLLECTION
3. Questionnaire – It can be done in the printing or digital form. It
consists of simple and direct questions with space included for
respondents to write on.
Example:
Questionnaire on favorite Sports
Check the box next to the sport you like best. Choose only 1 sport.
Badminton Soccer Basketball Table-Tennis
11. TYPES OF DATA COLLECTION
4. INTERVIEWS – questions are being prepared by the interviewer
beforehand which will be answered by the interviewee. It can be
conducted in-person, over the phone or online via online surveys or
video calls.
Example:
Conduct an interview with students in your class to find out their daily means of
transport to school.
Question: What is your means of transportation going to school?
(Possible answers: Bus, small jeep, motorcycle, bike, private car, private
motorcycle)
12. OTHER TYPES OF DATA COLLECTION
5. SURVEYS
Example: In Thailand, a population census is conducted every 10 years
to find out various characteristics of the population distribution.
6. Experiment
Example: Experiment are carried out to find the average lifespan of a
particular brand of energy saving light bulbs.
