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What is the average (arithmetic mean) number of televisions per househ
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30 Sep 2022, 03:38
30 Sep 2022, 03:38
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61% (01:10) correct
38% (01:26) wrong based on 26 sessions
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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
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GRE Math Essentials (2022)
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GRE Math Essentials (2022)
GRE Geometry Formulas
GRE - Math Book
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Joined: 02 Jan 2020
Status:GRE Quant Tutor
Posts: 1111
Given Kudos: 9
Location: India
Concentration: General Management
Schools: XLRI Jamshedpur, India - Class of 2014
GMAT 1: 700 Q51 V31
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Re: What is the average (arithmetic mean) number of televisions per househ
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30 Sep 2022, 09:07
30 Sep 2022, 09:07
1
1
Bookmarks
============================================================
Theory
============================================================
Average = (Total Number of Houses *16% * 0 + Total Number of Houses *8% * 1 + Total Number of Houses *24% * 2 + Total Number of Houses *20% * 3 + Total Number of Houses *20% * 4 + Total Number of Houses *12% * 5 or more) / Total Number of Houses
If the last number of televisions was a fixed number instead of 5 or more then we would ahve found the average.
But in this case we cannot find it.
So, Answer will be A.
Hope it helps!
Watch the following video to Learn the Basics of Statistics
Theory
- ‣‣‣ Mean = (Sum Of All The Numbers) / (Total Number Of Numbers)
============================================================
Average = (Total Number of Houses *16% * 0 + Total Number of Houses *8% * 1 + Total Number of Houses *24% * 2 + Total Number of Houses *20% * 3 + Total Number of Houses *20% * 4 + Total Number of Houses *12% * 5 or more) / Total Number of Houses
If the last number of televisions was a fixed number instead of 5 or more then we would ahve found the average.
But in this case we cannot find it.
So, Answer will be A.
Hope it helps!
Watch the following video to Learn the Basics of Statistics
Re: What is the average (arithmetic mean) number of televisions per househ
[#permalink]
30 Sep 2022, 10:03
30 Sep 2022, 10:03
BrushMyQuant wrote:
============================================================
Theory
============================================================
Average = (Total Number of Houses *16% * 0 + Total Number of Houses *8% * 1 + Total Number of Houses *24% * 2 + Total Number of Houses *20% * 3 + Total Number of Houses *20% * 4 + Total Number of Houses *12% * 5 or more) / Total Number of Houses
If the last number of televisions was a fixed number instead of 5 or more then we would ahve found the average.
But in this case we cannot find it.
So, Answer will be A.
Hope it helps!
Watch the following video to Learn the Basics of Statistics
Theory
- ‣‣‣ Mean = (Sum Of All The Numbers) / (Total Number Of Numbers)
============================================================
Average = (Total Number of Houses *16% * 0 + Total Number of Houses *8% * 1 + Total Number of Houses *24% * 2 + Total Number of Houses *20% * 3 + Total Number of Houses *20% * 4 + Total Number of Houses *12% * 5 or more) / Total Number of Houses
If the last number of televisions was a fixed number instead of 5 or more then we would ahve found the average.
But in this case we cannot find it.
So, Answer will be A.
Hope it helps!
Watch the following video to Learn the Basics of Statistics
Hello sir, Can you please explain why you are multiplying the total number of houses each time?
