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ff The total revenue of five companies are represented in the bar graph. What is the difference between the revenue earned by company B and company D? ff

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ff The bar graph represents the rainfall in a city from October to December. Find the range of the data. ff

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ff A survey conducted by the Educational Department reveals the expenditure on the secondary and high schools. Pick an appropriate bar graph which represents the data shown in the table.
Year  Secondary School (in $millions)  High School (in $millions)  1985  325  225  1990  361  240  1995  418  274  2000  425  277  ff

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ff Customers of a food store were asked to rate the taste of a new health drink as Poor(P), Good(G), or Excellent(E). The data collected is shown here:G  E  P  G  E  G  E  G  P  G  E  G  G  G  E  P  G  E  G  P  E  P  G  E  G 
Which graph represents the Pareto chart for the given data?
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ff Which among the Pareto charts represents the frequency of the reasons for late arrival of an employee on a particular year?Causes for late arrival  Number of occasions  Family problems  8  Woke up late  20  Had to take the bus  4  Traffic tie  up  32  Sick  6  Bad weather  3  ff

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ff The pie chart represents the expenditure on different sports by a school authority in a calender year. If the expenditure on Tennis is $880, then what is the expenditure on each sport? ff

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ff The orbital velocities of the planets in our solar system are shown in the table. Construct a Pareto chart for the data.Planet  Velocity (mi/sec)  Mercury  29.7  Venus  21.8  Earth  18.5  Mass  15.0  Jupiter  8.1  Saturn  6.0  Uranus  4.2  Neptune  3.4  Pluto  3.0  ff

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ff In a survey, the percentage loss of forest cover is as recorded.Region  Percent  Asia/Pacific  76  Europe (Excluding Russia)  75  Russia  24  Africa  68  America  35  Represent the data in a Pareto chart. ff

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ff The dot plot shows the number of chocolates each student of a class has. How many more chocolates does David have than Joe? Who among the following has median number of chocolates? ff

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ff The sales of a local electronic goods store in a particular month is shown in the bar graph. What was the difference between the sales of washing machines and refrigerators in that month? ff

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ff Find the decrease in the number of birds from 1997 to 1999 from the bar graph as shown. In which year did the zoo have the least number of birds? ff

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ff The bar graph displays the number of people who eat different food items. Find the difference in the number of people who eat Burgers and Deserts. Which of the dot plots represent the data? ff

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ff The number of phone calls received by Nathan during each day of the week are in the dot plot. Find the average number of calls Nathan received per day. ff

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ff The number of various kinds of snakes found in a zoo are shown in the dot plot. What is the total number of snakes in the zoo? ff

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ff The number of children of different age living in a housing complex are shown in the table. Select an appropriate dot plot for the data.Age  Number of children  13  6  14  8  15  9  16  7  17  4 
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ff Find the mean and mode of the dot plot as shown. ff

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ff The number of poems written by students in a competition is shown in the dot plot. What is the fraction of poems written by Tom? ff

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ff Construct a pie graph for the points scored by a student in final examination representing the percentage of scores in each subject.
Subject  Score  English  82.5  Math  105  Science  120  French  135  History  97.5 
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ff The sale of food items in U.S. for the year 2000 is shown in the table. I. What is the angle made by the sale of bevarages in the pie chart? II. Find the ratio of the percentage sale of dairy to the sale of produce. III. What fraction of sales is grain / cereals?Food items  Sales ($)  Dairy  114255.50  Beverages  79807.65  Confections  76223.75  Meat/Poultry  76958.83  Seafood  51674.80  Grains/Cereals  62039.82  Condiments  50491.47  Produce  43278.18 
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ff The preferences of a group of 300 students to different soft drinks are detailed in the table.Soft drink  Number of Students  Pepsi  Cola  92  Diet Coke  78  Mt Dew  48  7 UP  42  Others  40  Construct a pie graph for the data representing the central angle for the number of students preferring each soft drink. ff

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ff The mode of transport of a group of students to the school is shown in the table. Mode of transport  Number of students  Walking  9  Train  10  Tram  6  Car  12  Bicycle  3  What fraction of the students travel by train? Find the ratio of the percentage of the students traveling by bicycle to the students walking to the school. ff

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ff The sales of a fruit vendor is shown in the table. Construct a pie chart.Types  Number of Sales  Percent  Apples  120  12%  Strawberry  300  30%  Orange  160  16%  Mangoes  200  20%  Others  220  22%  What is the difference between the sales percent of mangoes and apples? ff

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ff Calculate the percentage raise in the number of vehicle registrations from 1990 to 2000 from the graph. ff

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ff The manager of ABC company investigated the reasons for the delay associated with processing 67 credit card applications. Pareto chart for the data is shown. Find the total percentage of customers who have not signed on the applications and who have not given their addresses. ff

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ff The pie chart represents the expenditure of a family on different items. Answer the following questions by analyzing the pie chart. I. Find the percentage expenditure on Fuel. II. What fraction of expenditure is spent on Housing? III. Find the percentage difference in the expenditure of Clothing and Others. ff

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