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ee  The graph represents the scores of four students in an examination. Which of the following conclusions interpreted from the graph are incorrect?
I. Adam's score is double the score of John.
II. Tom's performance is same as that of Chris.
III. John's score is 75% of Chris score.
IV. Tom has to score 5% of Adam's score additionally to reach the score of Adam.  ee
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ee  The compound time series graph represents the number of snow shovels sold at a store during a particular season for two years. Find the percentage increase in the number of shovels sold from 2002 - 2003 to 2003 - 2004.
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ee  Which time series graphs represents the percentage change in the number of chronic patients (cases) in a major hospital over the years? The data is given as:
Year199920002001200220032004
Chronic patients (%)2.3%2.4%1.8%1.9%2.0%1.7%

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ee  The graph represents the number of vehicle registrations from 1985 to 2000. Which of the following conclusion(s) interpreted from the graph is/are correct?
I. The vehicle registrations in 1985 has doubled by the year 1990.
II. The number of vehicle registrations from 1985 to 2000 has been increasing constantly.
III. The percentage rise in vehicle registrations from 1995 to 2000 is 2.33%.
IV. The number of vehicle registrations in 2000 is four times the registrations in 1985.  ee
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ee  A sample of the number of admissions to a psychiatric ward at a local hospital during a certain period was as follows: 22, 30, 21, 27, 31, 36, 20, 28, 25, 33, 30, 21, 38, 32, 35, 26, 19, 43, 30, 34, 27 and 41. Which stem and leaf plot represents the data?  ee View Solution
ee  The serving speed (miles per hour) of some of the tennis players who participated in a tennis tournament are 128, 129, 130, 131, 132, 133, 134, 135, 136, 137 and 138. Which of the stem and leaf plots represents the data correctly?
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ee  The graph represents the weight lifting machines and their capacities (in pounds). Which of the graphs is misleading?  ee View Solution
ee  The line graph shows the automobile sales from 1990 to 2000. Pick an appropriate line graph (misleading graph), which redraws the graph to show the rapid increase in the automobile sales.
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ee  The compound time series graph represents the number of cars manufactured by two different manufacturing companies. Find the difference between the number of cars manufactured by the two companies in the year 1998.  ee View Solution
ee  In 1970, there were less than 50 software companies in Smart City Software Park. The number of these software companies has changed over the years. Construct a time series graph for the data and comment on the findings.
YearSoftware companies
199269
199379
1994103
1995112
1996173
1997179
1998212
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ee  The number of successful heart transplantations undertaken by two major hospitals in a city for the years 1999 - 2004 is shown on a compound time series graph. Which of the following statement(s) is/are correct?
I. There is a decrease in the number of successful heart transplantations during the years 2002 and 2003 in both the hospitals.
II. The number of successful heart transplantations done by hospital A is more in the year 2003 than in the year 2002.
III. The time series graph for hospital B is declined from 1999 through 2004.  ee
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BB  The temperatures (in °F) recorded at 30 places for the month of June in a particular country are given. Construct a stem and leaf plot and determine the median for the temperatures.  BB View Solution
BB  The stem and leaf plot represents the test scores of students out of 100. How many students got a score in the 90's on their test out of 100? How many students have taken the test?  BB View Solution
BB  The number of burglaries reported for a specific year in 30 different places of the U.S is shown in the stem and leaf plot. In how many places were the number of burglaries more than 69? Find the total number of burglaries occurred for that year in these 30 places.
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BB  The time series graph represents Carol's annual income. Find the average monthly income in the year 1995.  BB View Solution
BB  The back to back stem and leaf plot compares the number of boys and girls who visited the science exhibition on a particular day. Find the total number of students who visited the science exhibition.
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BB  The back-to-back stem and leaf plot represents the number of births in two cities during the last 5 weeks. Find the total number of births in the two cities.  BB View Solution
BB  The number of burglaries that occured in two cities during the last 5 weeks is represented on a back-to-back stem and leaf plot. Find the range of the number of burglaries that occurred in 2 cities.  BB View Solution
BB  The graphs show the sales of goods in an electronic store. Which of the graphs will the store owner produce for promotional campaigns? (to get a positive impression on the customers)  BB View Solution
BB  The students of the Medical School who went on a botanical trip were asked to collect different kinds of shrubs. While returning from the trip, they counted the number of shrubs collected by each student. Select the stem and leaf plot that displays their data correctly.
Name of studentDifferent types of shrubs collected
Tony10
Sunny8
Paul6
Matt2
Jeff16
Bill9
George28
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BB  Which of the following graphs is not misleading?  BB View Solution
BB  Which of the following statements can be inferred from the stem and leaf plot?
I. Five numbers are represented in the stem-and-leaf plot.
II. Ninety four is the greatest number in the data set.
III. Four numbers are represented in the stem-and-leaf plot.
IV. Most of the numbers fall between 30 and 49.
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BB  The graph represents the change in cost of materials from January to April. Which among the following statements is true?
I. Graph 1 shows a more drastic increase in the cost of materials.
II. The graphs represent the same data using different scales.
III. The graphs represent different data using the same scale.
IV. Graph 2 shows a more drastic increase in the cost of materials.
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BB  The amount spent for research and development in Chemistry Lab Inc., for the years 1998 to 2003 is shown. Which time series graphs represents the data shown?
Year199819992000200120022003
Amount ($)790082308937112711387715203

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BB  The time series graph represents the personal consumption expenditures on food for a country (in billions of dollars) from 1994 through 2000. In which year was the expenditure on food the maximum? Find the percentage of the expenditure of that year on total expenditure from 1994 - 2000.
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BB  The time series graph represents the change in the number of outdoor theaters over the years. Find the percentage decrease in the number of outdoor theaters from 1988 to 1990.  BB View Solution