math8 | critiquing data | analyzing misleading graphs assignment
level 3 - good
this graph shows the percentage of trucks made by each manufacturer that are still working properly and are on the road after 10 years.
1. list 3 reasons this graph is misleading:
a)
b)
c)
2. what incorrect conclusions could someone make when reading this graph? list at least 2.
a)
b)
3. how could this graph be redone to make it less misleading? be specific!
4. this graph is from a real advertisement.
a) which company do you think made this graph? why?
b) what message are they trying to tell the public about their vehicles? (2 - 3 sentences, use vocabulary from the mechanical systems unit).
graph: title \chevy is clearly the best!\, y - axis (percentage) with labels 95%, 80%, 87%, 92%, 99%, 100% (non - linear spacing), x - axis: chevy, ford, toyota, nissan/datson, bars for each manufacturer

Question

math8 | critiquing data | analyzing misleading graphs assignment
level 3 - good
this graph shows the percentage of trucks made by each manufacturer that are still working properly and are on the road after 10 years.
1. list 3 reasons this graph is misleading:
   a)
   b)
   c)
2. what incorrect conclusions could someone make when reading this graph? list at least 2.
   a)
   b)
3. how could this graph be redone to make it less misleading? be specific!
4. this graph is from a real advertisement.
   a) which company do you think made this graph? why?
   b) what message are they trying to tell the public about their vehicles? (2 - 3 sentences, use vocabulary from the mechanical systems unit).
graph: title \chevy is clearly the best!\, y - axis (percentage) with labels 95%, 80%, 87%, 92%, 99%, 100% (non - linear spacing), x - axis: chevy, ford, toyota, nissan/datson, bars for each manufacturer

Accepted Answer

### Question 1: List 3 reasons this graph is misleading
# Brief Explanations:
a) The vertical axis does not start at 0, exaggerating differences in percentages.
b) The graph has a biased title ("Chevy is Clearly the Best!") that influences interpretation.
c) The y - axis labels are unclear (e.g., "95%", "97%", "99%", "100%"—spacing and labeling may be inconsistent), making it hard to accurately compare values.

# Answer:
a) Vertical axis does not start at 0, exaggerating differences.
b) Biased title influences interpretation.
c) Unclear y - axis labels hinder accurate comparison.

### Question 2: What incorrect conclusions could someone make? (List at least 2)
# Brief Explanations:
a) Someone might think Chevy’s trucks are far more reliable than others, but the actual percentage difference between Chevy and other brands (like Ford) may be small (since the y - axis is misaligned).
b) They could conclude that Nissan/Datsun trucks are extremely unreliable, but the low bar is exaggerated by the non - zero y - axis start.

# Answer:
a) Chevy’s trucks are far more reliable than others (exaggerated by axis).
b) Nissan/Datsun trucks are extremely unreliable (exaggerated by axis).

### Question 3: How could this graph be redone to make it less misleading?
# Brief Explanations:
Start the vertical axis at 0 to show true percentage differences. Label the y - axis clearly with consistent intervals (e.g., 0%, 50%, 100% or smaller, equal intervals). Remove the biased title and use a neutral one (e.g., "Percentage of Trucks Still Working After 10 Years by Manufacturer").

# Answer:
Start the y - axis at 0, use clear/consistent y - axis labels, and use a neutral title.

### Question 4a: Which company do you think made this graph? Why?
# Brief Explanations:
Chevrolet (Chevy) likely made the graph. The title favors Chevy, and the graph is designed to make Chevy’s trucks appear the best, which would benefit Chevy’s marketing.

# Answer:
Chevrolet (Chevy) made the graph. The title and graph design favor Chevy’s trucks, supporting their marketing.

### Question 4b: What message are they trying to tell the public?
# Brief Explanations:
They are trying to tell the public that Chevy trucks are the most reliable (have the highest percentage still working after 10 years) and far better than competitors like Ford, Toyota, and Nissan/Datsun. The graph’s design (axis, title) emphasizes Chevy’s superiority to attract customers.

# Answer:
Chevy is trying to show their trucks are the most reliable (highest percentage working after 10 years) and far better than competitors, using the graph to attract customers with this reliability claim.

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QUESTION IMAGE

Question

Explanation:

Question 1: List 3 reasons this graph is misleading

Answer:

Question 2: What incorrect conclusions could someone make? (List at least 2)