GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
What is the average (arithmetic mean) number of televisions
[#permalink]
02 Feb 2020, 17:43
02 Feb 2020, 17:43
3
Bookmarks
00:00
Question Stats:
99% (01:34) correct
0% (00:00) wrong based on 7 sessions
Hide Show timer Statistics
Attachment:
Screenshot from 2020-02-03 07-42-50.png [ 50.62 KiB | Viewed 2723 times ]
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
Show: ::
ANSWER WILL ADDED LATER
Re: What is the average (arithmetic mean) number of televisions
[#permalink]
03 Feb 2020, 07:39
03 Feb 2020, 07:39
1
The Average cannot be determined, since we don't know the exact number of TVs that are in the households that have 5 or more TVs (they can have 5, 6, ...or every other greater number) --> to compute the average, we need any single number (it takes outliers into account in contrast to the median). We could compute the median, but that is not asked, so the answer is A
(16*0 +8*1 + 2*24 + 3*20 + 4*20 + x*12) / 100 = (8+48+60+80+12x) /100 = 1,96 +0,12x
(16*0 +8*1 + 2*24 + 3*20 + 4*20 + x*12) / 100 = (8+48+60+80+12x) /100 = 1,96 +0,12x
Re: What is the average (arithmetic mean) number of televisions
[#permalink]
09 Mar 2020, 04:12
09 Mar 2020, 04:12
Answer will be option A cannot be determined
Reasoning --> No of television per household can be anywhere between 6 to infinity
Reasoning --> No of television per household can be anywhere between 6 to infinity
