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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Understand the theory and practice of exploratory data analysis 
SAQA US ID UNIT STANDARD TITLE
258741  Understand the theory and practice of exploratory data analysis 
ORIGINATOR
SGB Geographical Information Sciences 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 12 - Physical Planning and Construction Physical Planning, Design and Management 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 6  Level TBA: Pre-2009 was L6  4 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard has been developed as a fundamental unit standard and is intended for all persons interested in simple statistics. A person who has successfully completed this unit standard will have an understanding of exploratory spatial statistics.

A person credited with this unit standard is able to:
  • Understand and construct frequency bar charts.
  • Understand scatterplots.
  • Understand and interpret Stem and Leaf displays.
  • Understand and explain Box Plots. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The credit calculation is based on the assumption that learners are already competent in terms of the following outcomes or areas of learning when starting to learn towards this unit standard:
  • Communication at NQF Level 5.
  • Mathematical Literacy at NQF Level 5.
  • Application of elementary statistical methods. 
    		•

    UNIT STANDARD RANGE 
    Specific range statements are provided in the body of the unit standard where they apply to particular specific outcomes or assessment criteria. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Understand and construct frequency bar charts. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The difference between discreet and continuous data is understood and explained. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to:
  • Nominal, ordinal, interval, and ratios.
     
    		•

    ASSESSMENT CRITERION 2 
    The differences between nominal, ordinal, interval and ratio data are understood and explained. 

    ASSESSMENT CRITERION 3 
    A frequency table is constructed manually and also using statistical software. 

    ASSESSMENT CRITERION 4 
    A frequency graph is constructed manually on graph paper and using statistical software. 
    ASSESSMENT CRITERION RANGE 
    Discrete data - Frequency Bar Chart, Continuous data - Histogram.
     

    SPECIFIC OUTCOME 2 
    Understand scatterplots. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Rules for creating scatterplots are understood and explained. 
    ASSESSMENT CRITERION RANGE 
    Scales of measure, co-variance.
     

    ASSESSMENT CRITERION 2 
    A scatterplot is created manually on graph paper and using statistical software. 

    ASSESSMENT CRITERION 3 
    Scatterplot is correctly interpreted. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to clustered, correlated, irregular, regular.
     

    SPECIFIC OUTCOME 3 
    Understand and interpret Stem and Leaf displays. 
    OUTCOME RANGE 
    Including but not limited to the following numbers:

    Stem and Leaf of the numbers: 35, 36, 38, 40, 42, 42, 44, 45, 45, 47, 48, 49, 50, 50, 50.

    Math Test Scores (out of 50 pts):
  • Stem 3; Leaf 5, 6, 8.
  • Stem 4; Leaf 0, 2, 2, 4, 5, 5, 7, 8, 9.
  • Stem 5; Leaf 0, 0, 0. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Methods for creating stem and leaf displays are understood and explained. 

    ASSESSMENT CRITERION 2 
    A stem and leaf display is created. 

    ASSESSMENT CRITERION 3 
    The stem and leaf display is interpreted. 

    SPECIFIC OUTCOME 4 
    Understand and explain Box Plots. 
    OUTCOME RANGE 
    Including but not limited to:
  • Minimum, maximum, mean, medians, variance, standard deviations, normal distributions, skewed distributions, etc. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The method for creating boxplots is understood and explained. 

    ASSESSMENT CRITERION 2 
    A Box-Plot is created manually on graph paper and using statistical software. 

    ASSESSMENT CRITERION 3 
    A Box-Plot is correctly interpreted. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA by SAQA.
  • Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines and the agreed ETQA procedures. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Essential embedded knowledge is dealt with under the specific outcomes section where "Demonstrate Knowledge and Understanding" is required. 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Solve problems. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/group/organisation or community. 

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one's activities responsibly and effectively. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and critically evaluate information. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematics and language skills in the modes of oral and written presentations. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically (showing responsibility towards the environment and health of others). 

    UNIT STANDARD CCFO DEMONSTRATING 
    Display an understanding of the world as a set of related systems. 

    UNIT STANDARD CCFO CONTRIBUTING 
    Contribute to the full development of each learner and the social and economic development of society at large. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    Notes to Assessors:
  • Interpretation of scatterplots should be limited to basic types, such as those listed in the range statement. Do not venture into tassel caps or such like scatterplots. 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Fundamental  63689   Bachelor of Arts: Geographical Information Science  Level 6  Level TBA: Pre-2009 was L6  Passed the End Date -
    Status was "Reregistered"     		 2018-06-30   
    Elective  63711   Bachelor of Geographical Information Science (GISc)  Level 7  NQF Level 07  Passed the End Date -
    Status was "Reregistered"     		 2018-06-30   


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.