1. A)
The Profits variable has five NAs in it, meaning that the spreadsheet is missing data on those
five companies profits. No other variable is missing data. Lastly Profits holds a mean of 0.38, but are
range for Profits is -25 to 20, so it would seem w
Manufacturer
General Motors
Ford
Chrysler LLC
Toyota
Honda
Nissan
Total
2009 Relative Frequency
154,069
124744
101,001
132,802
88,379
66,634
667,629
2010
188,011
178,188
92,623
186,863
108,262
95,468
849,415
0.231
0.187
0.151
0.199
0.132
0.100
Car Sales C
Chapter 3
Section 1
The quantity he or she is most likely to use is the arithmetic mean, which is often simply
called the mean. To find the mean of a list of numbers, add the numbers, then divide by
how many numbers there are.
A list of n numbers is denot
Excel Lab Activity: Constructing Graphical Displays for Qualitative Data
Instructions:
In this activity, we will use Microsoft Excel to construct graphical displays for qualitative
data. Please complete each of the exercises below using Excel to construct
When using 1-Var Stats on a scientific or graphing calculator, the resulting statistical output
includes two values for the standard deviation of the data set. These values are labeled as Sx and
x in the statistical output. Why is it necessary to give two
In the 2012 Winter Guard Competition, a total of 5,590 performers participated. Of these, 578
represented Texas, 231 represented California, and 76 represented Florida.
1. What is the probability that a performer chosen at random represents Texas or Calif
Chapter 2
Section 1
The frequency of a category is the number of times it occurs in the data set.
A frequency distribution is a table that presents the frequency for each category.
The relative frequency of a category is the frequency of the category divi
Chapter 1
Section 1
Statistics is the study of procedures for collecting, describing, and drawing conclusions
from information.
In statistical terminology, the large group is called a population, and the part of the group
on which we collect information i
The sampling technique used was focused on high income homes who own automobiles, and
people with telephones. The poll oversampled higher-income people. A lower income family
couldnt afford a car or telephone. Which a large majority of it was based on low
JOHNSTON COMMUNITY COLLEGE
Student Acknowledgement Form
Course: T 3 7.
Instructor: Q h
The act of enrollment at Johnston Community College indicates acceptance by the student of publishedruh'!s f
and policies of the college. The purpose of this code is no