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DI Set #3-number of televisions per household
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31 Aug 2014, 22:45
31 Aug 2014, 22:45
4
Expert Reply
1
Bookmarks
| No. of Televisions | Percentage of Households |
| 0 | 16% |
| 1 | 8% |
| 2 | 24% |
| 3 | 20% |
| 4 | 20% |
| 5 or more | 12% |
What is the median number of televisions per household?
A) Cannot be determined
B) 1
C) 2
D) 2.5
E) 3
What is the average (arithmetic mean) number of televisions per household?
A) Cannot be determined
B) 2.1
C) 2.3
D) 2.5
E) 2.7
If k is the number of households with exactly 2 televisions, then the number of households with exactly 4 televisions is-
A) k-4
B) 2k
C) k/100-4
D) 5k/6
E) 500k/6
_________________
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Re: DI Set #3-number of televisions per household
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31 May 2016, 21:12
31 May 2016, 21:12
1)E
2)A
3)D
QA'z plzz
2)A
3)D
QA'z plzz
Re: DI Set #3-number of televisions per household
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22 Jun 2017, 03:17
22 Jun 2017, 03:17
1
1
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Can anyone explain the question no 3.
Re: DI Set #3-number of televisions per household
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26 Sep 2017, 07:33
26 Sep 2017, 07:33
1
Q.3
k = 24% of X
n° of households with 4 TV = 20% of X
Thus, in terms of k, n*of households with 4 TV comes from \(k = 0.24X\), then \(X= \frac{k}{0.24}\).
Substituting X into the second statement, we get \(0.2*\frac{k}{0.24}=\frac{5}{6}k\)
k = 24% of X
n° of households with 4 TV = 20% of X
Thus, in terms of k, n*of households with 4 TV comes from \(k = 0.24X\), then \(X= \frac{k}{0.24}\).
Substituting X into the second statement, we get \(0.2*\frac{k}{0.24}=\frac{5}{6}k\)
Re: DI Set #3-number of televisions per household
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25 Jun 2019, 02:59
25 Jun 2019, 02:59
Kindly explain the the first one and second one question also please
Re: DI Set #3-number of televisions per household
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26 Jun 2019, 08:10
26 Jun 2019, 08:10
Expert Reply
For the first question is the middle number of the five. Which is 3
For the second one you cannot determine the average because you do have 5 or more numbers which could be also one million.
Hope is more clear now.
Ask if you do need.
Regards
_________________
For the second one you cannot determine the average because you do have 5 or more numbers which could be also one million.
Hope is more clear now.
Ask if you do need.
Regards
_________________
Re: DI Set #3-number of televisions per household
[#permalink]
10 May 2022, 06:35
10 May 2022, 06:35
2
In question 1, "What is the median number of televisions per household"
isn't the table mean that the total number of TVs depends on the number of households?
To clarify, if we assume the total households is 100
then we have sixteen Zero, eight 1s..
if we assume the total households is 200
then we have 32 zero ?
other thing, if I assumed the above understanding is wrong .. why the answer is 3 not 2.5 ?
isn't the table mean that the total number of TVs depends on the number of households?
To clarify, if we assume the total households is 100
then we have sixteen Zero, eight 1s..
if we assume the total households is 200
then we have 32 zero ?
other thing, if I assumed the above understanding is wrong .. why the answer is 3 not 2.5 ?
Re: DI Set #3-number of televisions per household
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26 Sep 2023, 04:04
26 Sep 2023, 04:04
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Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
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