Class of 2009 The term "measures of central tendency" is a fancy name for mean, median and mode (Schultzkie, 2007). Mean: Average. The sum.

Class of 2009

The term "measures of central tendency" is a fancy name for mean, median and mode (Schultzkie, 2007). 

Mean: Average. The sum of a set of data divided by the number of data. (Do not round your answer unless directed to do so.)

Median: The middle value or the mean of the middle two

values, when the data is arranged in numerical order. 

Mode:  The value ( number) that appears the most. It is possible to have more than one mode, and it is possible to have no mode. If there is no mode-write "no mode," do not write zero (0) . 

1. The weekly Vocabulary test scores for students in English 4A are: 80, 94, 54, 80, 49, 67 and 95. For the seven test scores find:

(a) the mean (b) the mode (c) the median

Answer – Question 1Mean Step One: Add all numbers: 67 80 94 52 80 49 96

Step Two: Divide answer by total number of test scores:

518 7= 74

518

Answer – Question 1ModeStep One: Put the scores in order from

lowest to highest. 49, 52, 67, 80, 80, 94, 95Step Two: Find the score that is repeated

The greatest number of times. 49, 52, 67, 80, 80, 94, 95

Answer – Question 1MedianStep One: Put the scores in order from

lowest to highest. 49, 52, 59, 67, 80, 80, 94

Step Two: Find the score that is the middle.

49, 52, 59, 67, 80, 80, 94

Click on the screen to surf with the Mean. (Video clip not available on web due to copyright considerations.)

Click on the picture for a city

challenge to find the mean, mode and median

Using the printed copy of your high school transcript, figure your GPA by semesters and summer school from 9th grade through 11th grade.

Open New Blank Page on Microsoft Word Click on Insert>Picture>Chart (Office 2003) Choose Line Graph An Excel Spreadsheet will appear. Label Rows 2 through 10 by Semesters and

Summer school (SS-Summer School)

9-1 9-2 9-SS 10-1 10-2 10-SS 11-1 11-2 11-SS

3.5 2.7 4.0 3.1 2.2 3.6 1.8 2.6 3.8

Review the graph of your Grade Point Average

Reflect on why your Grade Point Average went up or down each semester from the time you entered high school through your eleventh grade year.

Review the Reflective Essay Scoring Rubric hand-out.

Write an essay which includes the following:1. Introductory paragraph with strong thesis

statement Detail paragraph one – Ninth grade reflections Detail paragraph two – Tenth grade reflections Detail paragraph three – Eleventh grade reflections. Conclusion – How will your Senior year grades reflect what you have learned from previous years.

Schultzkie, L. (2007, December). Mean, Mode, Median. Retrieved January 21, 2009, from Regemts Exam Prep Center: http://regentsprep.org/Regents/math/mean/pmeasure.htm

Bitesize. (2009, January). Retrieved January 22, 2009, from BBC: http://www.bbc.co.uk/schools/ks2bitesize/maths/activities/modemedianmean.shtml

Discovery Education Streaming. (2009, January). Retrieved January 22, 2009, from Discovery Education: http://player.discoveryeducation.com