Assignment 2 - International Business and Information...

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International Business and Information Technology Programmes 7.107 Mathematics for computing 2.115 Business Mathematics and Statistics Assignment 2: Semester 3, 2010 Due: 11:00 AM , Friday 5 th of November 2010 Where: Assignments must be handed in at Reception (Asquith Campus). Late assignments will be penalized 5% per day (or part of a day) for two days and will receive a mark of zero after two days. This assignment is worth 10% of the total marks ______________________________________________________________________________________ Purpose The purpose of this assignment is testing the students understanding in Statistics, 1
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Part A: Statistics 5M 10 15.8 19.2 8.7 2M Mean=(10+15.8+19.2+8.7)/4=53.7/4=13.425 xi xi-mean (xi-mean)^2 10 10-13.425 (-3.425)^2=11.731 15.8 15.8-13.425 (2.375)^2=5.641 19.2 19.2-13.425 (5.775)^2=33.351 8.7 8.7-13.425 (-4.725)^2=22.326 total 73.049 n Variance=∑(xi-mean)^2/n=73.049/4=18.262
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Assignment 2 - International Business and Information...

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