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Question
The bar chart for the data given in the frequency table is shown below.
For which year the data in graph is incorrectly represented?
For which year the data in graph is incorrectly represented?
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Solution
Using tally marks,
The number of computers sold in 1995 is 5 + 5 + 5 + 5 = 20.
The number of computers sold in 1996 is 5 + 3 = 8.
The number of computers sold in 1997 is 5 + 5 = 10.
The number of computers sold in 1998 is 5 + 1 = 6.
In the bar graph, the bar raised for the year 1995 shows only 14. It has to be 20 computers.
Hence, the data for the year 1995 is incorreclty represented.
The number of computers sold in 1995 is 5 + 5 + 5 + 5 = 20.
The number of computers sold in 1996 is 5 + 3 = 8.
The number of computers sold in 1997 is 5 + 5 = 10.
The number of computers sold in 1998 is 5 + 1 = 6.
In the bar graph, the bar raised for the year 1995 shows only 14. It has to be 20 computers.
Hence, the data for the year 1995 is incorreclty represented.
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