menu
QAmmunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
Three students are selected at random from a class consisting of 5 freshman, 3 sophomores, and 2 juniors. Find the probability that 2 freshman and 1 junior are selected given that at least 1 freshman is
asked
Mar 28, 2018
82.0k
views
5
votes
Three students are selected at random from a class consisting of 5 freshman, 3 sophomores, and 2 juniors. Find the probability that 2 freshman and 1 junior are selected given that at least 1 freshman is selected.
Mathematics
middle-school
Chad Grant
asked
by
Chad Grant
8.1k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
3
votes
There are 10 students and 3 are selected. When 1 freshmen is selected, it leaves 9 students and 2 slots. There are 72 different events because there are 9 students for the first one of those two and 8 for the other. You then have to find how many of them have 1 freshmen and 1 junior. There are 12 events were a freshmen is chosen after a junior and 12 were they are chosen before a junior. (3x4). this means that 24/72 events meat the criteria so their is a 1/3 or 33.3% chance.
Ali Aljarah
answered
Apr 2, 2018
by
Ali Aljarah
7.9k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Oct 1, 2018
153k
views
A high school is conducting a vote to see which class (freshman, sophomore, junior, or senior) can go to see a play performance. The freshmen have 399 students, the sophomores 350 students, the juniors
Mutant
asked
Oct 1, 2018
by
Mutant
8.1k
points
Mathematics
high-school
1
answer
0
votes
153k
views
asked
Aug 13, 2018
27.3k
views
For this problem, assume that three students are chosen from 5 freshmen, 4 sophomores, and 4 juniors. What is the probability of selecting 2 freshmen and 1 junior given that at least one freshman will
RAVITEJA SATYAVADA
asked
Aug 13, 2018
by
RAVITEJA SATYAVADA
7.9k
points
Mathematics
college
1
answer
5
votes
27.3k
views
asked
Sep 24, 2021
20.8k
views
A school dance sold 2 types of tickets: one for freshman/sophomores (9th/10th graders), and one for juniors/seniors (11th/12th graders). The freshman/sophomore tickets cost $8, and the junior/senior tickets
Bnaya
asked
Sep 24, 2021
by
Bnaya
8.1k
points
Mathematics
college
1
answer
0
votes
20.8k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.5m
questions
12.2m
answers
Other Questions
How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search QAmmunity.org