Graph A and Graph B both show the number of passengers, in thousands of passengers, who flew out of Mourning Dove Airport for each year from 2017 through
2023. (Both graphs show exactly the same data.)
Graph A
Passenger traffic
(in thousands of passengers)
Graph B
Passenger traffic
(in thousands of passengers)
2007
2005 2009
2021 20022 2023
15
2017 2018 2019 2000 2021 3022 2023
(a) Give a rough estimate of the change in yearly passenger traffic from 2017 to 2023. (Choose the best answer.)
1
O It decreased by
O It decreased by about 100%.
It increased by a factor of 1.1), so in 2023 the number of passengers was 1() times what it was in 2017.
O It decreased by a factor of 10, so in 2023 the number of passengers was only
1
10
of what it was in 2017.
(b) Approximate to the nearest whole number (in thousands of passengers) the change in the yearly passenger traffic from
2017 to 2023.
thousand
(c) Which of the two graphs is more likely to be misleading? Why? (Choose the best answer.)
O In Graph A, the points look to be at similar heights, which suggests there was a relatively small decrease in the
number of passengers. In Graph B, the points look to be at very different heights, suggesting that there was a
dramatic decrease in the number of passengers. Therefore, Graph B could mislead a person into thinking that the
decrease in the number of passengers between 2017 and 2023 was larger than it really was.
In Graph A, the points look to be at very different heights, suggesting that there was a dramatic decrease in the
number of passengers. In Graph B, the points look to be at similar heights, which suggests there was a relatively
small decrease in the number of passengers. Therefore, Graph B could mislead a person into thinking that the
decrease in the number of passengers between 2017 and 2023 was smaller than it really was.
In Graph A, the points are at heights of the same relative size as the actual numbers of passengers. In Graph B, the
differences between the numbers of passengers are exaggerated. Therefore, Graph A could mislead a person into
thinking that the decrease in the number of passengers between 2017 and 2023 was smaller than it really was.
In Graph A, the baseline is at 40 instead of 1), which exaggerates the differences between the numbers of
passengers. In Graph B, the baseline is at (), so the points are at heights of the same relative size as the actual
numbers of passengers. Therefore, Graph A could mislead a person into thinking that the decrease in the number of
passengers between 2017 and 2023 was larger than it really was.
X
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