The above table shows data for four internet connection types in

Question

Type 
 Proportion of   Suscribers 
 Average Advertised   Download Speed,   mbps 
 Monthly Volume of   Data Downloaded,   TB 
 Monthly Profit   per Subscriber,   $ 
 Main   Areas- 
 
  Dial-Up 
 2.4% 
 0.1 
 32 
 5.00 
 Rural 
 
  DSL 
 39.1% 
 9.2 
 313,926 
 15.28 
 Urban 
 
  Cable, Fibre Satellite and Other 
 8.6% 
 26.8 
 212,617 
 18.87 
 Urban 
 
  Mobile and Fixed Wireles 
 49.9% 
 6.4 
 28,196 
 152.14 
 Suburban

The above table shows data for four internet connection types in Australia in December 2012. The main area column shows in which of the three area types(Urban, Suburban or Rural) are the most subscribers that use a certain connection type.

For each of the following statements, select YES if the statement can be shown to be true based on the information in the table. Otherwise, select NO.

Apt0810 · Answer

A)No,since if we look on the data Cable fibre , satellite and other we see that 8.6% of users have downloaded 212617 TB of data while if we see the DSL then 39.1% of users have downloaded 313926 TB of data so ultimately if we see the proportional calculation so Cable Fibre and satelly users have downloaded more data than done by DSL users

B)Yes Mobile and fixed wireless connection has more profit per subscriber :152.14

C)No,we cannot comment on it since we only know the total % of population divided among the four categories and whether the category among rural,urban,and suburban is highest among any of the 4 defined connections,but through it we cannot say that the urban has a particular population percentage

Posted from my mobile device

bM22 · Answer

A. A DSL subscriber has downloaded on the average more data than a subscriber of any other connection type.

Now the average downloaded data for all the subscribers is as: 
Dial Up - 32/2.4%
DSL - 313926/ 39.1%
Cable,Fibre Satellite & Other - 212617/8.6%
Mobile Fixed and Wireless - 28196/49.9%

We can see that  Cable,Fibre Satellite & Other  has downloaded on the average more data than a subscriber of any other connection type, not DSL, since the ration of the Data downloaded to per subscriber is higher for the former.

Answer No.

B. The mobile and fixed wireless connection generated more profit than any other type of internet connection.
Yes, since it can be directly inferred from the table (152.14).

Answer Yes.

C. Less than 66% of subscribers lived in an urban area.
Subscribers in Rural Area : 2.4%
Subscribers in Urban Area: 47.7%
Subscribers in Sub-Urban Area: 49.9%.
Now even if we assume the total population, we cannot segregate it into Rural, Urban and Sub-Urban, so it could be that Less than 66% of subscribers lived in an urban area. or not, we cannot explicitly infer.

Answer No.

mSKR · Answer

1. 
313926/39.1%~ 320000/40 ~8K
others: cable xx: 212617/8 = 21k higher than DSL

NO

2.
Case: Total profit
Total profit: 152* 49.9%= 150*50= 7500
others: seems lower

Case : profit per subscriber
Profit per subscriber : 152
others: seems lower

YES

3. In which of the three area types(Urban, Suburban or Rural) are the most subscribers that use a certain connection type.
>> means rural use most of dial up

Case1:maximum possible
Assume urban is total in DSL and Cable xx
and 2nd highest: 1.2 % in Dial up and Mobile, fixed wirless (24.9)

Dialup( maximum possible)= 1.2%~
DSL(maximum) 39.1%
cable xx(maximum) 8.6%
Mobile xx( maximum possible)= 24.9%~

total = 73.7%( higher than 66%)

case2: minimum possible
definitely below 66% as it could be 34%(1/3rd+) for DSL and cable xx
others assume 0% 
0+13~+3~+ 0% = 16% ( lower than 66%)

NO

agrasan · Answer

Hi  KarishmaB   MartyMurray   chetan2u

Just confirming my reasoning on statement-3.

It is "No" because it just says proportion of subscribers for each type but we don't know what is the size of each type. Let's say if  DSL  and  Cable,Fibre Satellite and Other,  both of which fall under "  Urban "  category has very large size as compared to   Rural   and   Suburban   then less than 66% might not be true.

For ex:   100k  is combined size of both  Urban  whereas only it is only  1000  for  Rural and Suburban  combined, then definitely much greater than 66% of subscribers live in Urban area.

Please let me know if this is the correct reasoning.

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The above table shows data for four internet connection types in

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Type	Proportion of Suscribers	Average Advertised Download Speed, mbps	Monthly Volume of Data Downloaded, TB	Monthly Profit per Subscriber, $	Main Areas-
Dial-Up	2.4%	0.1	32	5.00	Rural
DSL	39.1%	9.2	313,926	15.28	Urban
Cable, Fibre Satellite and Other	8.6%	26.8	212,617	18.87	Urban
Mobile and Fixed Wireles	49.9%	6.4	28,196	152.14	Suburban

Yes	No
		A DSL subscriber has downloaded on the average more data than a subscriber of any other connection type.
		The mobile and fixed wireless connection generated more profit than any other type of internet connection.
		Less than 66% of subscribers lived in an urban area.

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