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The following values represent the number of cars owned by t

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Founder
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The following values represent the number of cars owned by t [#permalink]  06 May 2019, 04:48
Expert's post
00:00

Question Stats:

66% (00:46) correct 33% (01:15) wrong based on 21 sessions
The following values represent the number of cars owned by the 20 families on Pearl Street.

1, 1, 2, 3, 2, 5, 4, 3, 2, 4, 5, 2, 6, 2, 1, 2, 4, 2, 1, 1

What is the probability that a family randomly selected from Pearl Street has at least 3 cars?

(A) $$\frac{1}{6}$$

(B) $$\frac{2}{5}$$

(C) $$\frac{9}{20}$$

(D) $$\frac{13}{20}$$

(E) $$\frac{4}{5}$$
[Reveal] Spoiler: OA

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Founder
Joined: 18 Apr 2015
Posts: 11934
Followers: 250

Kudos [?]: 2967 [0], given: 11172

Re: The following values represent the number of cars owned by t [#permalink]  20 Apr 2020, 14:37
Expert's post
total 8 such values out of 20 families >=3 cars
so P
8/20 ; 2/5

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Manager
Joined: 10 Feb 2020
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Re: The following values represent the number of cars owned by t [#permalink]  25 Jun 2020, 01:45
Carcass wrote:
total 8 such values out of 20 families >=3 cars
so P
8/20 ; 2/5

My answer is correct. Thanks @Carcass and team I was awful in probability topic but now atleast i can do easier ones correctly. Thanks to this club. You guys are wonderful
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Founder
Joined: 18 Apr 2015
Posts: 11934
Followers: 250

Kudos [?]: 2967 [1] , given: 11172

Re: The following values represent the number of cars owned by t [#permalink]  25 Jun 2020, 01:55
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Expert's post
I would not be concerned that much.

Maybe you will see one question if not zero during the test.

I would concentrate rather on number of properties or statistics.

Regards
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Manager
Joined: 10 Feb 2020
Posts: 186
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Kudos [?]: 46 [0], given: 110

Re: The following values represent the number of cars owned by t [#permalink]  25 Jun 2020, 16:51
Carcass wrote:
I would not be concerned that much.

Maybe you will see one question if not zero during the test.

I would concentrate rather on number of properties or statistics.

Regards

Number properties
Geometry
Statistics
Data analysis
and Algebra are most important right?
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Founder
Joined: 18 Apr 2015
Posts: 11934
Followers: 250

Kudos [?]: 2967 [0], given: 11172

Re: The following values represent the number of cars owned by t [#permalink]  26 Jun 2020, 08:00
Expert's post
Yes
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Re: The following values represent the number of cars owned by t   [#permalink] 26 Jun 2020, 08:00
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