Identifies mode with weak justification 1 Correctly states range = 12 1f 1 Correctly gives sample standard deviation as 2.70 (to 2 1g decimal places). Must indicate correct SD with Sx or n-1. 2 Clearly described sampling technique used as stratified, systematic or random and described why the selected 2a article was an appropriate/typical article. Clearly described why the article was appropriate OR 1 Correctly described the type of sampling used. 4 Table includes: Heading Score column and frequency column Tally column with corresponding frequencies 2b 3 of above 4 points 2 of above 4 points 3 2 1 of above 4 points 1 5 Correctly calculated all 5 measures for own data 4 Correctly calculated 4 measures 2c 3 Correctly calculated 3 measures 2 Correctly calculated 2 measures 1 Correctly calculated 1 measure 2 Clearly described findings and supported these with mathematical features/measures 2d Satisfactory description linked to at least one statistical 1 measure. 5 Correctly lists 5 number summaries for both sets of data, uses an appropriate scale and correctly constructs plots for both sets of data 4 of the above 5 points 2e 4 3 of the above 5 points 3 2 of the above 5 points 2 1 of the above 5 points 1 3 Lists 2 appropriate similarities and 1 appropriate difference (or vice versa) supported with mathematical evidence Lists 1 appropriate similarity and 1 appropriate difference supported with mathematical evidence OR 2 Lists 2 appropriate differences supported with 2f mathematical evidence Gives 1 appropriate difference supported with mathematical evidence OR 1 Lists various similarities and differences in mathematical measures without connecting to what they mean /37 Total Mark Awarded
Identifies mode with weak justification 1f 1 Correctly states range = 12 1g 1 Correctly gives sample standard deviation as 2.70 (to 2 decimal places). Must indicate correct SD with Sx or n-1. 2a 2 1 Clearly described sampling technique used as stratified, systematic or random and described why the selected article was an appropriate/typical article. Clearly described why the article was appropriate OR Correctly described the type of sampling used. 2b 4 3 2 1 Table includes: Heading Score column and frequency column Tally column with corresponding frequencies 3 of above 4 points 2 of above 4 points 1 of above 4 points 2c 5 4 3 2 1 Correctly calculated all 5 measures for own data Correctly calculated 4 measures Correctly calculated 3 measures Correctly calculated 2 measures Correctly calculated 1 measure 2d 2 1 Clearly described findings and supported these with mathematical features/measures Satisfactory description linked to at least one statistical measure. 2e 5 4 3 2 1 Correctly lists 5 number summaries for both sets of data, uses an appropriate scale and correctly constructs plots for both sets of data 4 of the above 5 points 3 of the above 5 points 2 of the above 5 points 1 of the above 5 points 2f 3 2 1 Lists 2 appropriate similarities and 1 appropriate difference (or vice versa) supported with mathematical evidence Lists 1 appropriate similarity and 1 appropriate difference supported with mathematical evidence OR Lists 2 appropriate differences supported with mathematical evidence Gives 1 appropriate difference supported with mathematical evidence OR Lists various similarities and differences in mathematical measures without connecting to what they mean Total Mark Awarded /37