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.
The probability that Gary will eat eggs
[#permalink]
Updated on: 13 Dec 2021, 23:45
Updated on: 13 Dec 2021, 23:45
1
1
Bookmarks
00:00
Question Stats:
72% (00:46) correct
27% (00:55) wrong based on 22 sessions
Hide Show timer Statistics
The probability that Gary will eat eggs for breakfast on any given day is 3/7. The probability that Gary will eat cereal for breakfast on any given day is 4/7. Gary never has both eggs and cereal for breakfast on the same day.
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.
Source: Manhattan Prep
Quantity A |
Quantity B |
Probability that Gary eats eggs or cereal for breakfast on a particular day |
1 |
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.
Source: Manhattan Prep
Re: The probability that Gary will eat eggs
[#permalink]
23 Jul 2016, 12:07
23 Jul 2016, 12:07
3
Expert Reply
Solution
Here we have 2 events:
A: Eating Egg. P(A)=\(\frac{3}{7}\)
B: Eating Cereal. P(B) =\(\frac{4}{7}\)
A and B: Eating both Eggs and Cereals. P(A and B) = \(0\)
P(A or B)= P(A) + P(B) - P(A and B)
= \(\frac{3}{7} + \frac{4}{7} - 0\) = 1
Hence P(A or B)= 1. Thus Option C is correct.
Here we have 2 events:
A: Eating Egg. P(A)=\(\frac{3}{7}\)
B: Eating Cereal. P(B) =\(\frac{4}{7}\)
A and B: Eating both Eggs and Cereals. P(A and B) = \(0\)
P(A or B)= P(A) + P(B) - P(A and B)
= \(\frac{3}{7} + \frac{4}{7} - 0\) = 1
Hence P(A or B)= 1. Thus Option C is correct.
The probability that Gary will eat eggs
[#permalink]
13 Dec 2021, 23:47
13 Dec 2021, 23:47
Expert Reply
