NCCU
Statistics: Homework #1
Problem 1
Higher rates of ice cream consumption and drowning for a city correspond. This leads people
to believe that eating ice cream can somehow put you at risk of drowning. Can you think of
another interpretation?
Solution

Statistics
Tue., 1:10-4:00pm, 250103
Instructor: Pei-Ting Chou
Email: eptchou@nccu.edu.tw
Office Location: Research Building 503
Office Hours: Wed 12:00-1:00pm (or by appointment)
Reference: Statistical Techniques in Business and Economics, 16th Edition
A

NCCU
Statistics: Homework #2
Problem 1
A sample data set with a bell-shaped distribution has mean x = 6 and standard deviation
s = 2. Find the approximate proportion of observations in the data set that lie:
a. between 4 and 8; b. between 2 and 10; c. bet

Statistics
Fall 2016
Chapter 4: Describing Data: Displaying and Exploring Data
Chou
4.1
Measure of Position
standard deviation - the most widely used measure of dispersion.
Another way to describe the spread of data is using the position of values that