Q1. The Central Limit Theorem (CLT) is one of the most important principles in statistics. It states that when we take many random samples from any population—no matter what the population’s original distribution looks like—the distribution of the sample means will approach a normal (bell-shaped) distribution as the sample size becomes large enough (usually n ≥ 30). This happens even if the population itself is not normally distributed. The CLT helps us understand that the average of a large
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1. Análise SWOT – Apple Inc.
Forças (Strengths):
1. Forte reputação e marca global: A Apple é sinónimo de inovação, qualidade e design premium, o que lhe permite praticar preços elevados e fidelizar clientes.
2. Ecossistema integrado de produtos e serviços: A ligação entre hardware, software e serviços (iPhone, Mac, iCloud, Apple Music, etc.) cria uma experiência única e aumenta a dependência do consumidor.
Fraquezas (Weaknesses):
1. Preços elevados: Os produtos Apple são caros,...
ما هي الأخطاء التي قد يقع فيها الباحث أثناء قيامه بتلخيص وعرض الدراسات السابقة؟
الإجابة:
مراجعة الدراسات السابقة بسرعة كبيرة: تعد مراجعة الدراسات السابقة بسرعة كبيرة من أكثر الأخطاء شيوعاً، وذلك لأنها تفوت على الباحث معلومات قد يمر عليها بسرعة ولا ينتبه لأهميتها، لذلك يجب
| Concept | Command / Info | Key Point |
|---|---|---|
| OS Info | uname -a |
Show kernel, version, arch |
| List files | ls, ls -l, ls -als |
-l = detailed, -a = show hidden |
| Manual | man <cmd> |
View command help |
| Clear screen | clear |
Same as cls in Windows |
| Current dir | pwd |
Show current directory |
| Move dirs | cd, cd .., cd ~ |
Move / go up / go home |
| Make dir | mkdir <dir> |
Create folder |
| Rename / Move | mv <src> <dst> |
Rename or move files |
FORTRAN: FORmula TRANslation; scientific computing (arrays, loops, floats); Ideas - compiled code for speed; DO loop; subprograms; formatted I/O. Legacy: foundation of scientific programming.
ALGOL 60: ALGOrithmic Language; First machine-independent language; Introduced: block structure, recursion, BNF, format types, compound statements (begin...end); Legacy: basis for imperative languages
COBOL: COmmon Buisness-Oriented Language; buisness/data preprocessing; English-like syntax, records,
This topic analyzes how government intervention (taxes or subsidies) affects market equilibrium, consumer surplus (CS), producer surplus (PS), and total efficiency (DWL).
Tax Wedge: A tax ($\tau$) drives a wedge between the price buyers pay ($P_d$) and the price sellers receive ($P_s$).
$P_d = P_s + \tau$
The new equilibrium quantity ($Q_t$) is found where $Q_d(P_d) = Q_s(P_s)$.
Subsidy Wedge: A subsidy ($s$)
Guten Tag! — Dzień dobry!
Grüß dich! — Witaj!
Hallo! — Cześć!
Hi! — Hej!
Servus! — Cześć!
Auf Wiedersehen! — Do widzenia!
Bis bald! — Do zobaczenia!
Bis morgen! — Do jutra!
Mach’s gut! — Trzymaj się!
Tschüss! — Cześć! (na pożegnanie)
buchstabieren — literować
sagen — powiedzieć
schreiben — pisać
(nicht)