Question

in a class of 35 students, 13 are seniors, 10 are juniors, 9 are sophomores, and...

in a class of 35 students, 13 are seniors, 10 are juniors, 9 are sophomores, and 3 are freshmen. If four students are selected at random from this class, what is the probability that all three are freshmen are selected?
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Given information

Total students n = 35

seniors =13

juniors=10

sophomores = 9

freshmen=3

we want to select four students in than three are freshmen and one other

No. of ways to select 4 out of 35 students = = 52360

No. of ways to select 4 students out of which 3 are freshmen

=

=32

Probability = 32 / 52360

probability = 0.000611

Therefore, probability that all three are freshmen are selected is 0.000611

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
7 freshmen, 6 sophomores, 9 juniors, and 8 seniors are eligible to be on a committee....
7 freshmen, 6 sophomores, 9 juniors, and 8 seniors are eligible to be on a committee. If a committee of 14 students is chosen at random, what is the probability that it is made up of 2 freshmen, 3 sophomores, 4 juniors, and 5 seniors? Round your answer to 6 decimal places as needed.
A football team consists of 13 each freshmen and sophomores, 14 juniors and 12 seniors. Four...
A football team consists of 13 each freshmen and sophomores, 14 juniors and 12 seniors. Four players are selected at random to serve as captains. Find the probability that : a) all four are seniors b) There is one each: freshman, sophomore, junior and senior. c) There are 2 sopomores and 2 fresjhman d) At least one of the students is a senior
We have 18 students: 3 seniors, 5 juniors, 4 sophomores, and 6 freshmen in a class....
We have 18 students: 3 seniors, 5 juniors, 4 sophomores, and 6 freshmen in a class. We want to form a student organization to represent the students. The student organization is composed of 8 students. We want to select 8 random students (ignoring their class rank for now). How many possible combination is there to form an organization? Incorrect. Tries 1/2 Previous Tries If we choose 8 students randomly, there is a problem because we could have, for example, 3...
A mathematics class consists of 40% freshmen, 30% sophomores, 20% juniors, and 10% seniors.If 50% of...
A mathematics class consists of 40% freshmen, 30% sophomores, 20% juniors, and 10% seniors.If 50% of the freshmen, 60% of the sophomores, 70% of the juniors, and 80% of the seniors are males, what is the probability that a randomly selected male student is a freshman?
An upper-level sociology class has 120 registered students: 34 seniors, 57 juniors, 22 sophomores and 7...
An upper-level sociology class has 120 registered students: 34 seniors, 57 juniors, 22 sophomores and 7 freshmen. Imagine that you choose one random student from the classroom (perhaps by using a random number table). What is the probability that the student will be a junior? What is the probability that the student will be a freshmen? If you are asked to select a proportionate stratified sample of size 30 from the classroom, stratified by class level (senior, junior, etc), how...
A high school club consists of 4 freshmen, 5 sophomores, 5 juniors, and 6 seniors. How...
A high school club consists of 4 freshmen, 5 sophomores, 5 juniors, and 6 seniors. How many ways a commitee of 4 people be chosen that includes: a. One student from each class? b. All juniors? c. Two freshmen, and 2 seniors? d. No freshmen? e. At least three seniors?
This year, there are eight freshmen, ten sophomores, seven juniors, and eight seniors are eligible to...
This year, there are eight freshmen, ten sophomores, seven juniors, and eight seniors are eligible to be on a committee. In how many ways can a dance committee of 8 students be chosen?    ways In how many ways can a dance committee be chosen if it is to consist of 2 freshmen, 2 sophomores, 2 juniors, and 2 seniors. ways In how many ways can a dance committee be chosen if it is to consist of 4 juniors and...
Of students at a particular university: 20% are freshmen 22% are sophomores 23% are juniors 28%...
Of students at a particular university: 20% are freshmen 22% are sophomores 23% are juniors 28% are seniors 7% are graduate students. Additionally, 60% of students are female. You may assume that being female is independent of the above classifications. A student will be selected at random and the variable CODE is defined based on the classification of the selected student: If freshmen, CODE = 1 If sophomore, CODE = 2 If junior, CODE = 3 If senior, CODE =...
Of students at a particular university: 20% are freshmen 22% are sophomores 23% are juniors 28%...
Of students at a particular university: 20% are freshmen 22% are sophomores 23% are juniors 28% are seniors 7% are graduate students. Additionally, 60% of students are female. You may assume that being female is independent of the above classifications. If we select students, one at a time, stopping once a female student is selected, what is the probability we will select 2 or fewer students?
An introductory psychology class has 30 male & 60 female freshmen, 14 male & 14 female...
An introductory psychology class has 30 male & 60 female freshmen, 14 male & 14 female sophomores, 12 male & 13 female juniors, and 6 male & 6 female seniors. Suppose that 26 students are to be randomly selected without replacement. If the first 10 students selected from the class were seniors, what is the probability that the next student will be a senior?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT