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.
Sep 28Live Online Class with Top GRE Expert Mike Butville
08:00 PM EDT
-10:00 PM EDT
Top scores are possible when you enroll in a powerful GRE course, taught live online + 6 months access to TTP GRE OnDemand video courses included! Class starts Mon/Wed Sept. 28, 2026 - Dec. 9, 2026, 8:00pm-10:00pm EST
The probability of randomly selecting a prime or an even number
[#permalink]
11 Oct 2021, 05:18
11 Oct 2021, 05:18
Expert Reply
2
Bookmarks
00:00
Question Stats:
47% (00:53) correct
52% (00:49) wrong based on 61 sessions
Hide Show timer Statistics
Quantity A |
Quantity B |
The probability of randomly selecting a prime or an even number from the set \({1,2,4,7,9}\) |
\(\frac{ 4}{5}\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: The probability of randomly selecting a prime or an even number
[#permalink]
11 Oct 2021, 10:02
11 Oct 2021, 10:02
1
Carcass wrote:
Quantity A |
Quantity B |
The probability of randomly selecting a prime or an even number from the set \({1,2,4,,7,9}\) |
\(\frac{ 4}{5}\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Favourable outcomes for A = {2,4,7} - even or prime = 3/5
B is greater
Re: The probability of randomly selecting a prime or an even number
[#permalink]
14 Dec 2023, 09:33
14 Dec 2023, 09:33
Carcass , what is the difference between my approach and approach taken by eskay1981 ?
P(Prime or Even)=P(Prime)+P(Even)−P(Prime and Even)
P(Prime or Even)=2/5 + 2/5 - (2/5 *2/5)
P(Prime or Even)= 16/25
P(Prime or Even)=P(Prime)+P(Even)−P(Prime and Even)
P(Prime or Even)=2/5 + 2/5 - (2/5 *2/5)
P(Prime or Even)= 16/25
