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The graph below shows US consumers' average annual expenditures on cell phone and residential phone services between 2001 and 2010.

Summarise the information by selecting and reporting the main features and make comparisons where relevant.

Write at least 150 words.

The graph gives the average amount of money spending on the cell phone and residential phone services from 2001 to 2010. The average annual expenditures had several statistics, began with 200$ and ended up with 800$.

Overall, the trend of cell phone services was upward trend while residential phone services were the downward trend. Moreover, there was a surpass point between these categories in 2006, and from then cellphone services passed over residential phone services in the cost of itself.

In detail, there was a huge gap between cellphone and residential phone in 2001 when residential phone services accounted for nearly 700$ and cellphone services made up 200$, which was two sevenths in total. Furthermore, both of these two services reached similar annual expenditures in 2006, which was 500$ and also became the surpass point when cellphone replaced residential phone services in general. By the end, in 2010, cellphones reached their peak of 750$, which was even higher than the beginning of residential phone services in 2001 for 50$.

AlpheccaStars · Accepted Answer

The graph gives the average amount of money spent annually ~~spending~~ on ~~the~~ cell phone and residential phone services from 2001 to 2010 in the United States. ~~The average annual expenditures had several statistics, began with 200$ and ended up with 800~~$. ("several statistics" does not make sense. Statistics is a school subject. You can take a course in statistics. For example, here is a description of a university-level course.

Description: This is an introductory course in statistics. Students are introduced to the fundamental concepts involved in using sample data to make inferences about populations. Included are the study of measures of central tendency and dispersion, finite probability, probability distributions, statistical inferences from large and small samples, linear regression, and correlation

Do not write about the data in the first paragraph.)

Overall, the trend for cell phone services was upward ~~trend~~ while (the trend for - you do not need to repeat these words; they are implied) residential phone services ~~were the~~ was downward ~~trend~~. Moreover, ~~there was a surpass~~ (wrong word) ~~point between these categories~~ ~~in 2006~~, in 2006, people spent the same amounts on both services. ~~from then cellphone services passed over residential phone services in the cost of itself~~. (ungrammatical)

In detail, there was a ~~huge gap~~ great difference between cellphone and residential phone expenditures in 2001 when residential phone services averaged ~~accounted for~~ nearly lt;/span>700 and cellphone services ~~made up~~ lt;/span>200 ~~$, which was two sevenths in total~~. (That does not make sense.) Furthermore, both of these two services reached ~~similar~~ the same annual expenditures in 2006, which was $500 and also became ~~the surpass point~~ ("Surpass point" is not good English) when cellphone replaced residential phone services in general. (That is not true. You do not have any data about the numbers of these phones.) By the end, in 2010, cellphones reached their peak (wrong word. This graph does not have any peaks at all.) of $750 which was even higher than the beginning of residential phone services in 2001 for 50lt;/span>.

I put a ruler on the graph to determine the dollar value at the crossover point.

The line graph compares the average outlay, in dollars, of US consumers for two types of telephone service, cellular and fixed line (residential), between 2001 and 2010.

Overall, this period showed a steady linear decline in fixed-line services and a corresponding increase in cell phone services, with equal yearly spending occurring in the middle of the period, 2006.

In detail, in the first year of the period, 2001, US consumers paid just under $700 for residential service and about $500 less for cell phone service, or about $210. From that point, their spending on fixed line services went down continuously at a rate of approximately $30 per year, to end at $400 in 2010. In contrast, these consumers increased the money they paid for cell phone services at a rate of about $55 per year, ending at about $760 in 2010. These two values crossed over in 2006 at an amount of about $540. In 2010, the cost of cell phone service was, on average, $70 higher than that of the fixed line service in 2001.

Note: How to compute RATES for linear trends. This works when the curve can be fit by a straight line.

There are 10 data points, or ten years: 2001, 2002, 2003,..... 2010.

The amount at the beginning (residential) is $690, and the value at the end is $390.

The difference is $300. Divide that by the 10 years and you get a RATE of decrease of $30/year. The amount went down, on average, $30 each year for ten years.

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