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14 Nov 2023, 08:18
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Dropdown 1: 22,000
Dropdown 2: 12,500
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
51% (02:12) correct
49%
(02:14)
wrong
based on 569
sessions
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Date
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Data Insights (DI) Butler 2023-24 [Question #111, Date: Nov-14-2023] [Click here for Details]
Expenditure and Income over a 12-year period for Mr. A
Attachment:
12.jpg [ 57.4 KiB | Viewed 4849 times ]
1. Mr. A's average (arithmetic mean) annual expenditure for the four-year period from year 8 through year 11 was close to dollars.
2. If net income is defined as income minus expenditure, the difference between Mr A's net income in years four and nine is close to dollars.
Show SpoilerAdditional Question
The difference between Mr As income and expenditure was less than five thousand dollars in__________the years shown
A. more than half
B. less than half
C. exactly half
Ans: A
A. more than half
B. less than half
C. exactly half
Ans: A
ShowHide Answer
Official Answer
Dropdown 1: 22,000
Dropdown 2: 12,500
14 Nov 2023, 10:32
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1. Mr. A's average (arithmetic mean) annual expenditure for the four-year period from year 8 through year 11 was close to
(all values In '000s)
Annual expenditure (average) = (18 + 20 + 22 + 25) / 4 = 85/5 = 21.25 (ie, closest to 22)
hence, 22,000 dollars.
2. If net income is defined as income minus expenditure, the difference between Mr A's net income in years four and nine is close to
(all values In '000s)
net income in year 4 = 23-25 = -2
net income in year 4 = 30-20 = 10
therefore, the difference between Mr A's net income in years four and nine = 10 - (-2) = 12 (ie, closest to 12500 dollars)
hence, 12,500 dollars.
(all values In '000s)
Annual expenditure (average) = (18 + 20 + 22 + 25) / 4 = 85/5 = 21.25 (ie, closest to 22)
hence, 22,000 dollars.
2. If net income is defined as income minus expenditure, the difference between Mr A's net income in years four and nine is close to
(all values In '000s)
net income in year 4 = 23-25 = -2
net income in year 4 = 30-20 = 10
therefore, the difference between Mr A's net income in years four and nine = 10 - (-2) = 12 (ie, closest to 12500 dollars)
hence, 12,500 dollars.
20 May 2024, 04:42
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1. Mr. A's average (arithmetic mean) annual expenditure for the four-year period from year 8 through year 11 was close to [22,000] dollars.
Y8: 18
Y9: 20
Y10: 23
Y11: 25
=> Avg is btw 20 and 23 =>> 22
2. If net income is defined as income minus expenditure, the difference between Mr A's net income in years four and nine is close to [12,500] dollars.
Net income in Y4: 23 - 25 = -2
Net income in Y9: 30 - 20 = 10
=> Difference: 12
Y8: 18
Y9: 20
Y10: 23
Y11: 25
=> Avg is btw 20 and 23 =>> 22
2. If net income is defined as income minus expenditure, the difference between Mr A's net income in years four and nine is close to [12,500] dollars.
Net income in Y4: 23 - 25 = -2
Net income in Y9: 30 - 20 = 10
=> Difference: 12
