Learning Materials
Features
Discover
Chapter 1: Q 123. (page 79)
If a distribution is skewed to the right with no outliers, which expression is correct?
(a) mean < median
(b) mean 鈮� median
(c) mean = median
(d) mean > median
(e) We can鈥檛 tell without examining the data.
Option (d) mean > median is correct option.
Over 30 million students worldwide already upgrade their learning with 91影视!
All the tools & learning materials you need for study success - in one app.
Get started for free
Cool car colors The most popular colors for cars and light trucks change over time. Silver advanced past green in 2000 to become the most popular color worldwide, then gave way to shades of white in 2007. Here is a relative frequency table that summarizes data on the colors of vehicles sold worldwide in a recent year.
(a) What percent of vehicles would fall in the 鈥淥ther鈥� category?
(b) Make a bar graph to display the data. Describe what you see.
(c) Would it be appropriate to make a pie chart of these data? Explain.
House prices The mean and median selling prices of existing single-family homes sold in September 2016 were \(276,200 and \)234,200. Which of these numbers is the mean and which is the median? Explain your reasoning.
Women and children first? Here鈥檚 another table that summarizes data on survival status by gender and class of travel on the Titanic:
(a) Find the distributions of survival status for males and for females within each class of travel. Did women survive the disaster at higher rates than men? Explain.
(b) In an earlier example, we noted that survival status is associated with class of travel. First-class passengers had the highest survival rate, while third-class passengers had the lowest survival rate. Does this same relationship hold for both males and females in all three classes of travel? Explain.
Far from home A survey asked first-year college students, 鈥淗ow many miles is this college from your permanent home?鈥� Students had to choose from the following options: 5 or fewer, 6 to 10, 11 to 50, 51 to 100, 101 to 500, or more than 500. The side-by-side bar graph shows the percentage of students at public and private 4-year colleges who chose each option. Write a few sentences comparing the distributions of distance from home for students from private and public 4-year colleges who completed the survey.
Here are the amounts of money (cents) in coins carried by 10 students in a statistics class: 50, 35, 0, 46, 86, 0, 5, 47, 23, 65. To make a stemplot of these data, you would use stems
a. 0, 2, 3, 4, 6, 8.
b. 0, 1, 2, 3, 4, 5, 6, 7, 8.
c. 0, 3, 5, 6, 7.
d. 00, 10, 20, 30, 40, 50, 60, 70, 80, 90.
e. None of these.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine