Introduction to Statistics

Hvilken type data er klassificeret i kategorier og kan ikke arrangeres i nogen bestemt rækkefølge?

Nominal

Hvad karakteriserer intervalniveauet for måling af data?

Der er ingen naturligt nulpunkt

Hvad kendetegner forholdsmæssigt niveau af måling af data?

Der er en naturligt nulpunkt

Hvad er et eksempel på nominal data?

Øjenfarve Signup and view all the answers

Hvilket niveau af data måler månedlig indkomst for kirurger?

Interval Signup and view all the answers

Hvad er formålet med beskrivende statistik?

At organisere, sammenfatte og præsentere data på en informativ måde Signup and view all the answers

Hvad kendetegner en kontinuerlig variabel?

Den kan antage enhver værdi inden for et specificeret interval Signup and view all the answers

Hvad er en population i statistik?

Den samlede samling af alle mulige individer, objekter eller målinger af interesse Signup and view all the answers

Hvad bruges inferentiel statistik til?

At trække konklusioner om en population baseret på et sample Signup and view all the answers

Hvad karakteriserer en diskret variabel?

Den kan kun antage visse værdier med 'gaps' mellem dem Signup and view all the answers

Which type of statistics involves making decisions, estimates, predictions, or generalizations about a population based on a sample?

Inferential Statistics Signup and view all the answers

What is the characteristic of a discrete variable?

Can only assume certain values with 'gaps' between values Signup and view all the answers

Which type of data is non-numeric, such as gender, religion, breed of cow, and skin color?

Qualitative Attributes Signup and view all the answers

What is the science of collecting, organizing, presenting, analyzing, and interpreting numerical data to assist in making more effective decisions?

Statistics Signup and view all the answers

What is the purpose of descriptive statistics?

To organize and present data in an informative way Signup and view all the answers

Which type of data involves data arranged in some order, but the differences between data values cannot be determined or are meaningless?

Ordinal data Signup and view all the answers

What type of variable is the degree of vigour of motility of a semen sample?

Interval variable Signup and view all the answers

Which type of variable involves data that is classified into categories and cannot be arranged in any particular order?

Nominal variable Signup and view all the answers

What characterizes the ratio level of measurement for data?

It has no natural zero point, and differences and ratios are meaningful. Signup and view all the answers

What level of measurement involves data with an inherent zero starting point, where differences and ratios are meaningful?

Ratio level Signup and view all the answers