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02 Dec 2024, 09:17
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Dropdown 1: Personal Watercraft
Dropdown 2: 10
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
64% (01:53) correct
36%
(02:11)
wrong
based on 648
sessions
History
Date
Time
Result
Not Attempted Yet
The graph above shows the number of boating casualties by vessel type for a given state in 2018, categorized as Deaths by Drowning, Other Deaths, and Non-Fatal Injuries.
From each drop-down menu, select the option that creates the most accurate statement based on the information provided.
In 2018, the probability of death from drowning was least for , for which the probability of a boat casualty resulting in death was closest to one in .
ShowHide Answer
Official Answer
Dropdown 1: Personal Watercraft
Dropdown 2: 10
04 Jan 2025, 05:15
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Bunuel
Official Solution:
Drop-down 1:
Drownings being the least likely cause of death implies that the ratio of drownings to (drownings + other deaths) is the smallest. Essentially, we are looking for the smallest ratio of the blue bar to (blue + orange bars). This lowest ratio is observed for Personal Watercrafts.
Drop-down 2:
For this dropdown, we are calculating the probability of death for Personal Watercrafts, which is given by (drownings + other deaths) / (total casualties). This is approximately \(\frac{50}{500}=0.1\), meaning 1 in 10 casualties for Personal Watercrafts result in death.
Correct answer:
Dropdown 1: "Personal Watercraft "
Dropdown 2: "10"
General Discussion
05 Dec 2024, 10:00
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1. The question first asks us to find the vessel type with the least probability of drowning.
2. In other words, the smallest ratio between the blue part and the entire column. This is clearly found in personal watercraft.
3. Next, we are asked to find the probability of boat casualty resulting in death for a personal watercraft. Out of 500 casualties for personal watercraft, about 50 resulted in death. That means the probability is a 1 to 10 ratio.
4. Our answer will be: Personal Watercraft and 10.
2. In other words, the smallest ratio between the blue part and the entire column. This is clearly found in personal watercraft.
3. Next, we are asked to find the probability of boat casualty resulting in death for a personal watercraft. Out of 500 casualties for personal watercraft, about 50 resulted in death. That means the probability is a 1 to 10 ratio.
4. Our answer will be: Personal Watercraft and 10.
