Written Assessment

Written Assessment

1. Continuous Data

   • DATA THAT CAN BE MEASURED
     • Eg: Weight, Time, Price
     • Graphs used to measure data
       • E.g.: Box Plots, Histograms, Frequency Polygons

2. Problems suffered

   • Products out of stock
     • Solution: Ignored those ones or chose availability option
   • Lots of anomalies
     • Ignored them when collecting

3. How well does investigation prove hypothesis?

   • Not well as lots of anomalies were collected
     • Validity of results weak
       • Tell how they are weak
     • Numerical values (averages, spread of data) MENTION!

4. Calculations used

   • Mean,Mode, Median
     • Show average of the data
   • Range, IQR, Standard Deviation
     • Show spread of the data

5. Problems in questions about other people doing investigations

   • 1. People may do more than 1 of that type, so allow more than one option

6. Graphs I could have done

   • Frequency Polygon
     • Can also measure skew, spread of data and shape of data
   • Normal Distribution
     • Allows to show spread of the data