login and complete business economics and statistics quiz

I need an A+ on this quiz…the other tutors have failed the quiz every time! I need a really good grade on this quiz to bring up my grade.

The quiz will be over topics like this:

Students are required to carefully read Chapter 3 with emphasis on the following topics:

1. Introduction
2. Section 3.1: Measures of location

a. Mean (Arithmetic & Weighted).
b. Median.
c. Geometric Mean – Skip.
d. Mode.
e. Percentiles & Quartiles.

3. Section 3.2: Measures of Variability

a. Range
b. Interquartile Range
c. Variance
d. Standard Deviation
e. Coefficient of Variation