12.1 Understand Representative Samples

The science of collecting,

describing, and interpreting data.

• scientist

• Statistics

• Statise

Statistics example

• Gender data (Male - Female).

• data on the student’s estimate ( A ,

  B , C , D

• data on the temperature needed to keep

  chickens for a certain period of time

• all

Data can be divided into two

groups :-

• Qualitative

  data

• Quantitative

  data

• mobile data

• all

It is non-digital data .

• Qualitative data

• Quantitative data

It is data expressed in numerical

numbers

• Qualitative data

• Quantitative data

Gender: "male – female "

Marital Status: "Married,

Single, Divorced "

Nationality

• Qualitative data

• Quantitative data

Temperature

The student’s score in the test

• Qualitative data

• Quantitative data

............ is the complete set group of individuals, whether that group comprises a nation or a group of people with a common characteristic

• A population

• sample

• simple random

• data

...............A representative sample is a subset of a population

• A population

• sample

• simple random

• data

is a type of probability sampling in which the researcher randomly selects a subset of participants from a population.

• A population

• sample

• simple random

• data