Carbon dioxide emissions Burning fuels in power plants and motor vehicles emit carbon dioxide

(CO2), which contributes to global warming. The table below displays CO2 emissions per person from countries with populations of at least 20 million.

(a) Make a histogram of the data using classes of width 2, starting at 0

(b) Describe the shape, center, and spread of the distribution. Which countries are outliers?

Short Answer

Expert verified

Part (b) Shape: skewed to the right

Center: between 2and 4metric tons per person

Spread: 0.1to 19.5metric tons per person

Australia, Canada, and the United States are outliers.

Part (a)

Step by step solution

01

Given information

The table is

CountryCo2CountryCo2CountryCO2CountryCo2
Algeria2.6Egypt2.0Italy7.8Romania4.2
Argentina3.6Ethiopia0.1Japan9.5Russia10.8
Australia18.4France6.2Kenya0.3Saudi Arabia13.8
Bangladesh0.3Germany9.9Korea, North3.3South Africa7.0
Brazil1.8Ghana0.3Korea, south9.3Spain7.9
Canada17.0India1.1Malasia5.5Sudan0.3
China3.9Indonesia1.6Mexico3.7Tanzania0.1
Colombia1.3Iran6.0Morocco1.4Thailand3.3
Congo0.2Iraq2.9Mayanmar0.2Tuekey3.0
CountyCO2CountryCO2
Itay7.8Romania4.2
Japan9.5Russia10.8
Kenya0.3Saudi Arabia13.8
Korea, North3.3South Africa7.0
Korea, South9.3Spain7.9
Malaysia5.5Sudan0.3
Mexico3.7Tanzania0.1
Morocco1.4Thailand3.3
Myanmar0.2Turkey3.0
Nepal0.1Ukraine6.3
Nigeria0.4United Kingdom8.8
Pakistan0.8United states19.6
Peru1.0Uzbekistan4.2
Philippines0.9Venezuela5.4
Poland7.8Vietnam1.0
02

Concept

A histogram is a graphing tool that is often used. It's used to summarise data that's either discrete or continuous and measured on an interval scale. It's a popular way to display the important aspects of a data distribution in a user-friendly way.

03

Part (a) Step 3: Explanation

The following is a histogram of CO2 emissions per person from nations with populations of at least 20 million:

Thus, a histogram is made for the given data.

04

Part (b) Step 1: Calculation

The form is asymmetrical and uneven. It is heavily tilted to one side. It appears to be more right-skewed. The average amount of emissions per person is between 4 and 5 metric tonnes. Three numbers stand out: 17,18,4,19.6

range = Minimum value − Maximum value

=19.60.1=19.5

Therefore, the data approximately follows the skewed distribution. Outliers in the data include Sweden, which has 17.4 metric tonnes of emissions per person, and the United States, which has 19.6 metric tonnes of emissions per person.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The IQR Is the interquartile range a resistant measure of spread? Give an example of a small data set that supports your answer.

Comparing investments Should you put your money into a fund that buys stocks or a fund that invests in real estate? The boxplots compare the daily returns (in percent) on a “total stock market” fund and a real estate fund over a year ending in November2007

(a) Read the graph: about what were the highest and lowest daily returns on the stock fund?

(b) Read the graph: the median return was about the same on both investments. About what was the median return?

(c) What is the most important difference between the two distributions?

Phone numbers the dot-plot below displays the last digit of 100phone numbers chosen at random from a phone book. Describe the shape of the distribution. Does this shape make sense to you? Explain.

Electoral votes To become president of the United States, a candidate does not have to receive a majority of the popular vote. The candidate does have to win a majority of the 538 electoral votes that are cast in the Electoral College. Here is a stemplot of the number of electoral votes for each of the 50 states and the District of Columbia.

(a) Make a boxplot of these data by hand. Be sure to check for outliers.

(b) Which measure of center and spread would you use to summarize the distribution—the mean and standard deviation or the median and IQR? Justify your answer.

Going to school Students in a high school statistics class were given data about the primary method of transportation to school for a group of 30 students. They produced the pictograph shown.

(a) How is this graph misleading?

(b) Make a new graph that isn’t misleading.

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free