What is Statistics? – Challenge Chido

[latexpage]
At first, we sample $f(x)$ in the $N$ ($N$ is odd) equidistant points around $x^*$:

\[

f_k = f(x_k),\: x_k = x^*+kh,\: k=-\frac{N-1}{2},\dots,\frac{N-1}{2}
\]

Collect

Organize

Analyze

Interpret

Not always right but...... Better than guessing, right?

from data

from data

from samples and populations

Involve methods of organizing, picturing and summarizing information

from samples and populations

from a sample to draw conclusions about the population

involves methods of using information

from a sample to draw conclusions about the population

A population is a group of peple or objects

with a common theme

When every member of the group is considered

It is a population

A small portion of the population

is a sample

Can be a representative sample

or a biased sample

Data from every individual

is available in population data

Entire population

Census

Sample data is only available from

some of the individuals in the population

2025