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Updated on: 18 Nov 2023, 04:17
Originally posted by Sajjad1994 on 15 Mar 2021, 22:00.
Last edited by BottomJee on 18 Nov 2023, 04:17, edited 2 times in total.
Last edited by BottomJee on 18 Nov 2023, 04:17, edited 2 times in total.
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Dropdown 1: 30s
Dropdown 2: 85-90
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
62% (02:16) correct
38%
(02:37)
wrong
based on 806
sessions
History
Date
Time
Result
Not Attempted Yet
1. In 2050, there will be more people in Botswana in their than in any other decade of age.
2. In 2050 in Botswana, the five-year age group with the highest percentage of females will be .
Attachment:
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Official Answer
Dropdown 1: 30s
Dropdown 2: 85-90
25 Mar 2021, 22:24
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Official Explanation
To answer the first question, recognize that the widest bar on both ends of the graph is the 30-35 bar (right above the number 30). And the second-widest bar is either the one right above it or right below it. While that distinction may be hard to make without a magnifying glass, note that the bar above it belongs also to "the 30s" (the 30-40 decade) while the one below it is 25-30, belonging to "the 20s." Since the other bar belonging to the 20s is much slimmer than the three discussed thus far, it is clear that the 30s is the most populous group.
To efficiently answer the second question, you can involve the dotted lines. Because the dotted line represents the "excess" population for any one gender, the greater the proportion of the area to the right of the dotted line, the greater the percentage of females. In the 80-85 range, the dotted line splits the female portion almost in half (which would mean that females are about 2/3 of the total), but in the 85-90 range that line is to the left of center, showing that more than half of females are "excess" and thereby demonstrating that females have an even greater percentage of the total population.
To answer the first question, recognize that the widest bar on both ends of the graph is the 30-35 bar (right above the number 30). And the second-widest bar is either the one right above it or right below it. While that distinction may be hard to make without a magnifying glass, note that the bar above it belongs also to "the 30s" (the 30-40 decade) while the one below it is 25-30, belonging to "the 20s." Since the other bar belonging to the 20s is much slimmer than the three discussed thus far, it is clear that the 30s is the most populous group.
To efficiently answer the second question, you can involve the dotted lines. Because the dotted line represents the "excess" population for any one gender, the greater the proportion of the area to the right of the dotted line, the greater the percentage of females. In the 80-85 range, the dotted line splits the female portion almost in half (which would mean that females are about 2/3 of the total), but in the 85-90 range that line is to the left of center, showing that more than half of females are "excess" and thereby demonstrating that females have an even greater percentage of the total population.
General Discussion
