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Inleiding

In die wêreld rondom ons word inligting dikwels in die vorm van syfers, grafieke en tabelle gegee. Ons sien dit op die televisie, op die radio en in die koerante. Ons word blootgestel aan misdaadsyfers, sportuitslae, reënval, die uitgawes van die regering, die tempo van HIV/VIGS infeksie, bevolkingsgroei en ekonomiese groei.

Hierdie hoofstuk demonstreer hoe Wiskunde gebruik kan word om data te manipuleer, om data en tendense voor te stel of wan voor te stel en om oplossings te bied wat direk betrekking het op die wêreld rondom ons.

Vaardighede wat in vorige grade verwerf is en verband hou met die versameling, organisering, uitbeelding, analise en interpretasie van inligting, word hier verder ontwikkel.

Hersiening van vorige werk

Dataversameling is in vorige grade bekendgestel as 'n manier om antwoorde te kry vir vrae wat te make het met die wêreld rondom ons.

Data en datainsameling

Data

Data

Data verwys na inligting wat waargeneem of opgeneem is as deel van 'n eksperiment of 'n meningspeiling. Daar is twee tipes data: primêre en sekondêre data. Die woord "data" is die meervoud van die woord "datum".

Data kan geklassifiseer word as primêr of sekondêr , en primêre en sekondêre data kan verder geklassifiseer word as kwalitatief of kwantitatief . [link] som die klassifikasie van data op.

Klassifikasie van data
  • beskryf die oorspronklike data wat versamel is. Hierdie tipe data staan ook bekend as rou data. Dikwels is die primêre datastel baie groot en moet dit opgesom of verwerk word om betekenisvolle inligting uit te lig.
  • is inligting wat nie met getalle beskryf kan word nie, byvoorbeeld as jy data insamel oor hoe mense voel of wat hul gunstelingkleur is.
  • is inligting wat geskryf kan word as getalle, byvoorbeeld as jy data insamel oor mense se lengte of massa.
  • is primêre data wat opgesom of verwerk is. Die stel kleure wat mense as hul gunstelingkleure aangedui het, is 'n voorbeeld van sekondêre data omdat dit 'n opsomming is van mense se antwoorde.

Die proses om primêre data om te skakel na sekondêre data deur analise, groepering of organisering is die proses waardeur informasie geskep word.

Doelwit van die insameling van primêre data

Data word versamel om antwoorde te kry wat help om 'n sekere situasie beter te verstaan. Hier is 'n paar voorbeelde van dataversameling uit die regte wêreld wat kwalitatiewe en kwantitatiewe data illustreer.

Kwalitatiewe data

  • Die plaaslike regering sal wil weet hoeveel inwoners elektrisiteit het en mag dan aan hulle vra: "Het jou huis 'n veilige, ononderbroke toevoer van elektrisiteit vanaf die nasionale kragvoorsiener (Eskom)?"
  • 'n Maatskappy wat medisyne vervaardig mag vra: "Hoe effektief verlig ons pil hoofpyn?" Daar kan dan aan mense wat die pil gebruik om hoofpyn te verlig, gevra word: "Hoe baie help ons pil om jou hoofpyn weg te neem?" Die maatskappy kan dan op grond van mense se antwoorde bepaal hoe effektief hul produk is.
  • 'n Motormaatskappy wil hulle kliëntediens verbeter en kan dan aan kliënte vra: "Hoe kan ons ons kliëntediens verbeter?"
  • 'n Supermarkbestuurder mag vra: "Watter tipes gaskoeldrank moet ek in my supermark in voorraad hê?" Daar mag dan miskien aan klante gevra word: "Wat is jou gunsteling gaskoeldrank?" Die klante se keuse of voorkeur is 'n voorbeeld van kwalitatiewe data.

Questions & Answers

what does preconceived mean
sammie Reply
physiological Psychology
Nwosu Reply
How can I develope my cognitive domain
Amanyire Reply
why is communication effective
Dakolo Reply
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
Wekolamo Reply
please i need answer
Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
Manix Reply
Agreed 👍 There are many parts of our brains and behaviors, we really need to get to know. Blessings for everyone and happy Sunday!
ARC
A child is a member of community not society elucidate ?
JESSY Reply
Isn't practices worldwide, be it psychology, be it science. isn't much just a false belief of control over something the mind cannot truly comprehend?
Simon Reply
compare and contrast skinner's perspective on personality development on freud
namakula Reply
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
explain how nature and nurture affect the development and later the productivity of an individual.
Amesalu Reply
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
Zyryn Reply
good👍
Jonathan
and having a good philosophy of the world is like a sandwich and a peanut butter 👍
Jonathan
generally amnesi how long yrs memory loss
Kelu Reply
interpersonal relationships
Abdulfatai Reply
What would be the best educational aid(s) for gifted kids/savants?
Heidi Reply
treat them normal, if they want help then give them. that will make everyone happy
Saurabh
What are the treatment for autism?
Magret Reply
hello. autism is a umbrella term. autistic kids have different disorder overlapping. for example. a kid may show symptoms of ADHD and also learning disabilities. before treatment please make sure the kid doesn't have physical disabilities like hearing..vision..speech problem. sometimes these
Jharna
continue.. sometimes due to these physical problems..the diagnosis may be misdiagnosed. treatment for autism. well it depends on the severity. since autistic kids have problems in communicating and adopting to the environment.. it's best to expose the child in situations where the child
Jharna
child interact with other kids under doc supervision. play therapy. speech therapy. Engaging in different activities that activate most parts of the brain.. like drawing..painting. matching color board game. string and beads game. the more you interact with the child the more effective
Jharna
results you'll get.. please consult a therapist to know what suits best on your child. and last as a parent. I know sometimes it's overwhelming to guide a special kid. but trust the process and be strong and patient as a parent.
Jharna
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Source:  OpenStax, Siyavula textbooks: wiskunde (graad 10) [caps]. OpenStax CNX. Aug 04, 2011 Download for free at http://cnx.org/content/col11328/1.4
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