References

=__References__= · Teh Keng Seng, Loh Cheng Yee, Joseph Yeo, Ivy Chow (2008) //New Syllabus Mathematics Book2 (6th Edition)//, Shinglee Publishers, Chapter 11 · Cliff, N. & Keats, J.A. (2003). //Ordinal Measurement in the Behavioral Sciences.// Mahwah, NH: Erlbaum. ISBN 0-8058-2093-0 · Frederick J.G. & Wallnau L.B.(2008). //Essentials of Statistics for the Behavioral Sciences (6th ed).// Wadsworth, Cengage Learning. · Schweigert Wendy A. (1994). //Research Methods & Statistics for Psychology//. Wadsworth, Brroks/Cole Publishing Co, Pacific Grove, California. · OCED Glossary of Statistical terms. (2003). //Average value//. Retrieved June 2010 from [] and //Open Ended Classes// from [] · Mathworld, Wolfram. (1999). //Arithmetic Mean//. Retrieved June 2010 from [], //Statistical Median// from [], //Mode// from [] and //Outlier// from [] · eHow. (1999). //Uses for Mean, Median & Mode//. Retrieved June 2010 from [] · Burke Johnson & Larry Cristensen (2007): //Educational Research – Quantitative, Qualitative, and Mixed Approaches.// Sage Publications, Los Angeles (//Chapter 15 – Descriptive Statistics.// Retrieved June 2010 from []) · Statistics.com (2004-2007) //The source for online courses in Statistics.// Retrieved June 2010 from [] · Robert Niles (1995-2010) //Standard Deviation.// Retrieved June 2010 from [] · Agnes Azzolino (2005) //Middle Ground – Some features of normal distribution.// Retrieved June 2010 from []