The impacts I Statistics - Vocabulary II The impacts of climate change

As global temperatures continue to rise, we'll see more changes in our climate and our environment. These changes will affect people, animals, and ecosystems.
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The impacts

I

Statistics - Vocabulary

Complete blanks with one of the following words : continuous - data - discrete - population (twice) - qualitative - quantitative - sample Statistics is concerned with the collection and interpretation of numerical information. Numerical information is known as ......................... The collection of data is made by taking a ..................... from the ....................being considered. The word ........................ in statistics does not necessarily refer to people. ............................ data is described using words ........................... data consists of numbers. Information which can be collected by counting is called ....................... data. For example, the number of children in a family, or the number of goals scored by hockey team each week. ......................... data is collected by measurement, and includes such information as height or weight.

II

The impacts of climate change

The Earth’s climate is getting warmer, and the signs are everywhere. Rain patterns are changing, sea level is rising, and snow and ice are melting sooner in the spring. As global temperatures continue to rise, we’ll see more changes in our climate and our environment. These changes will affect people, animals, and ecosystems in many ways. Example 1 : The bar graph alongside shows the number of events in the united states since 1980. 1. What are the different events considered in chart ? 2. How long has the number of events been greater than 150 ? 3. Give the percentage increase of events between 2005 and 2010. 4. In what year do the greatest number of events occur between 1980 and 1997 ? 5. Give the number of each type of events in 2010. 6. What is the evolution of the numbers of events during the past 30 years ? Example 2 : The atmosphere affects oceans, and oceans influence the atmosphere. As the temperature of the air rises, oceans absorb some of this heat and also become warmer. Warmer oceans affect weather patterns, cause more powerful tropical storms, and can impact many kinds of sea life, such as corals and fish. Warmer oceans are also one of the main causes of rising sea level. The graph alongside shows the sea surface temperature from 1975 to 2009. 1. Calculate the average temperature from 1975 to 1990 and the average temperature from 1991 to 2009. Conclude. 2. Trend line has been drawn to better explain the evolution. Knowing this line passes through A(1975, 22.8) and B(2009, 23.3), find the equation of the line. 3. Forecast the temperature in 2030.