Analyzing Customer Service Research Data using Bar Charts
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A research company asked 100 people about why they usually called customer services. Here are their answers:
• 35 people called to change an item they bought.
• 20 people called to make a reservation for transportation.
• 15 people called to learn something new.
• The rest of them called when their products didn't reach them on time.
Which of the following shows the results of the research?
A) [Image of bar chart A]
B) [Image of bar chart B]
C) [Image of bar chart C]
D) [Image of bar chart D]
This question includes visual content: The visual contains a color-coded legend and four bar charts (A, B, C, D). Legend: yellow block = return a product, blue block = book a flight ticket, red block = get information, salmon-colored block = report late arriving products. Each chart has a y-axis representing percentage and an implicit x-axis for the four categories. The values are: 35 for product return (yellow), 20 for transportation reservation (blue), 15 for learning news (red), and the remainder (100 - 35 - 20 - 15 = 30) for late products (salmon).
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Step by Step Written Solution
Hi Döne, let's look at this data problem and find the bar graph that correctly represents research results about customer service calls.
Understanding the Data
First, we are told that a research company asked 100 people why they call customer services. Since the total is 100, each person represents exactly one percent.
Total People: 100 (So 1 person = 1%)
Let's match each reason mentioned in the text with the colored legend provided.
| Reason in Text | Legend Label | Color |
|---|---|---|
| Change an item | Return a product | Yellow |
| Reservation | Book a flight ticket | Blue |
| Learn something new | Get information | Red |
| Product didn't reach on time | Report late arriving products | Orange/Brown |
Now, let's step through the numbers provided for each category. Thirty-five people called to change an item, which is the yellow bar.
Calculating Percentages
Next, twenty people called to make a reservation for transportation, represented by the blue bar.
Then, fifteen people called to learn something new. This corresponds to the red 'Get information' bar.
Finally, the rest of them called about late products. Let's calculate this by subtracting the others from 100.
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