Question

It is known that 20% of female students at certain school wear a ring, 30% of...

It is known that 20% of female students at certain school wear a ring, 30% of female students at this school wear a necklace, and 10% of female students wear both a ring and a necklace.


The probability that a randomly selected female student at this school wears a ring or a
necklace or both is __________
The probability that a randomly selected female student at this school wears a ring given
that this student wears a necklace is___________
The probability that a randomly selected female student at this school wears a necklace
given that this student wears a ring is___________

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
70 percent of students at a certain school wear neither a ring nor a necklace. 15...
70 percent of students at a certain school wear neither a ring nor a necklace. 15 percent wear a ring and 25 percent wear a necklace. If one of the students is chosen randomly, what is the probability that this student is wearing (a) a ring or a necklace? (b) a ring and a necklace?
A school club consists of 20 male students and 11 female students. If 4 students are...
A school club consists of 20 male students and 11 female students. If 4 students are selected to represent the club in the student government, what is the probability 2 will be male and 2 will be female? Hint: Hypergeometric
At a certain college, 53% of the students are female, and 17% of the students major...
At a certain college, 53% of the students are female, and 17% of the students major in civil engineering. Furthermore, 12% of the students both are female and major in civil engineering. (a)What is the probability that a randomly selected female student majors in civil engineering? Round your answer to the nearest hundredth. (b)What is the probability that a randomly selected civil engineering major is female? Round your answer to the nearest hundredth.
In a certain state, 30% of students will take an AP class, 40% of students will...
In a certain state, 30% of students will take an AP class, 40% of students will play a school sport, and 15% of students will do both. If we randomly selected a student, find the following: (a) the probability the student will play a sport, but not take an AP class. (b) the probability the student will play a sport, given the student takes an AP class. (c) the probability the student plays a sport or takes an AP class....
An advertising agency surveys a random sample of women aged 18-30. Suppose that 40% of respondents...
An advertising agency surveys a random sample of women aged 18-30. Suppose that 40% of respondents indicated that they wore neither a ring nor a necklace to work. If 50% of the women who responded wear a ring, and 20% wear a necklace, then (a) what percentage wear some form of jewelry (a ring or a necklace)? (b) what percentage wear both forms of jewelry (a ring and a necklace)? (c) what percentage of students wearing a necklace also wear...
Of students who graduate Grossmont College, 53% are female. At Grossmont College, there are 49% males...
Of students who graduate Grossmont College, 53% are female. At Grossmont College, there are 49% males and the rest are females. Also, 71% of the students at Grossmont College graduate. 1. What is the probability that a randomly selected student is female and graduates? 2. What is the probability that a randomly selected student is female? 3. What is the probability that a randomly selected student graduates given they are female?
Exercise 5.11. Sex and switching majors. At a certain university, 60% of undergraduate students are male,...
Exercise 5.11. Sex and switching majors. At a certain university, 60% of undergraduate students are male, and 40% are female. Ten percent of females change their majors at least once. Overall, 30% of students change their majors at least once. a. Find the probability that, given a randomly selected student who changes majors, the student is a female. b. What percentage of males change their majors at least once?
The accompanying table shows the numbers of male and female students in a particular country who...
The accompanying table shows the numbers of male and female students in a particular country who received​ bachelor's degrees in business in a recent year. Complete parts​ (a) and​ (b) below. Business Degree Non-business Degree Total MALE 182,219 614,184 796,401 FEMALE 172,736 886,243 1,058,979 Total 354,995 1,500,425 1,855,380 ​(a) Find the probability that a randomly selected student is male​, given that the student received a business degree. The probability that a randomly selected student is​ male, given that the student...
Suppose that a certain college class contains 40 students. Of these, 24 are sophomores, 20 are...
Suppose that a certain college class contains 40 students. Of these, 24 are sophomores, 20 are mathematics majors, and 9 are neither. A student is selected at random from the class. (a) What is the probability that the student is both a sophomore and a mathematics major? (b) Given that the student selected is a mathematics major, what is the probability that he is also a sophomore? Write your responses as fractions.
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