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15 Aug 2019, 00:32
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
71% (01:25) correct
29%
(01:38)
wrong
based on 174
sessions
History
Date
Time
Result
Not Attempted Yet
For the positive numbers, k, k + 1, k - 2, k + 3, what is the ratio of the mean to the median?
A. 1
B. 2
C. (k + 1)/2
D. (2k + 1)/2
E. (2k + 2)/(2k - 1)
A. 1
B. 2
C. (k + 1)/2
D. (2k + 1)/2
E. (2k + 2)/(2k - 1)
15 Aug 2019, 03:00
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K-2,k,k+1,k+3
Mean: 4k+2 /4 =k + 1/2
Median : k+k+1 /2=k + 1/2
The ratio is 1.
Option A
Posted from my mobile device
Mean: 4k+2 /4 =k + 1/2
Median : k+k+1 /2=k + 1/2
The ratio is 1.
Option A
Posted from my mobile device
24 Jan 2020, 12:16
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1) organize the values
- K - 2 , k , K+1, K+3
2) Plug 10 in for K
- 8,10,11,13
3) Set up ratio mean / median
4) find mean & median
- mean = 10 + 11 = 21
- Median = 10 + 11 = 21
5) Plug back mean and median into ration
- 21/21
Answer A = 1
- K - 2 , k , K+1, K+3
2) Plug 10 in for K
- 8,10,11,13
3) Set up ratio mean / median
4) find mean & median
- mean = 10 + 11 = 21
- Median = 10 + 11 = 21
5) Plug back mean and median into ration
- 21/21
Answer A = 1
