Last visit was: 18 Jun 2024, 02:24 It is currently 18 Jun 2024, 02:24

Close

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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GRE score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Verbal Expert
Joined: 18 Apr 2015
Posts: 28950
Own Kudos [?]: 33722 [4]
Given Kudos: 25365
Send PM
avatar
Manager
Manager
Joined: 08 Aug 2020
Posts: 92
Own Kudos [?]: 107 [0]
Given Kudos: 0
Send PM
Verbal Expert
Joined: 18 Apr 2015
Posts: 28950
Own Kudos [?]: 33722 [0]
Given Kudos: 25365
Send PM
avatar
Intern
Intern
Joined: 21 Aug 2020
Posts: 39
Own Kudos [?]: 29 [0]
Given Kudos: 0
Send PM
Re: p is the probability that a school’s hockey team wins today. [#permalink]
1
Another way to think about is that it never states that either of them could NOT be 0. It simply states that they both cannot be 0, so set one of them equal to 0 and you quickly realize that the Quantity B is going to be 0 while quantity A will be an actual number greater than 0.
avatar
Intern
Intern
Joined: 25 Aug 2020
Posts: 9
Own Kudos [?]: 9 [1]
Given Kudos: 0
Send PM
Re: p is the probability that a school’s hockey team wins today. [#permalink]
1
This question is more about algebra than probability, Since probability can't be > 1
we know number are in range 0-1
hence any number between 0 and 1 when multiplied by another number between 0 and 1 reduces in value so option A is correct.
avatar
Intern
Intern
Joined: 21 Oct 2020
Posts: 28
Own Kudos [?]: 36 [1]
Given Kudos: 0
Send PM
Re: p is the probability that a school’s hockey team wins today. [#permalink]
1
p+s = P(A U B)+P(A and B) = P(A U B)+p*s.
Since we do not have both equal zero at the same time, P(A U B) >0. Therefore, p+s>p*S
avatar
Intern
Intern
Joined: 06 Jun 2024
Posts: 3
Own Kudos [?]: 3 [1]
Given Kudos: 0
Send PM
Re: p is the probability that a schools hockey team wins today. [#permalink]
1
The maximum of ps = 0.5*0.5 = 0.25.
p+s =1 > ps

A
Prep Club for GRE Bot
[#permalink]
Moderators:
Moderator
1088 posts
GRE Instructor
218 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne