Question

Let’s assume the university’s profile page states that its current student population consists of 40% female...

Let’s assume the university’s profile page states that its current student population consists of 40% female students and 60% male students.

c) Compute the probability that your class of 20 students will contain less than 5 females.

d) What is the expected number of female students?

e) What is the variance and standard deviation of the number of female students?

Homework Answers

Answer #1

TOPIC:Use of the Binomial distribution.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
5. The student body of a large university consists of 60% female students. A random sample...
5. The student body of a large university consists of 60% female students. A random sample of 8 students is selected. What is the probability that among the students in the sample at least 6 are male? a. 0.0413 b. 0.0079 c. 0.0007 d. 0.0499 6. In a large class, suppose that your instructor tells you that you need to obtain a grade in the top 10% of your class to get an A on ExamX. From past experience, your...
One stats class consists of 52 women and 28 men.  Assume the average exam score on Exam...
One stats class consists of 52 women and 28 men.  Assume the average exam score on Exam 1 was 74 (σ = 10.43; assume the whole class is a population). Using random sampling, what is the probability that the first exam I select from a stack will be a male student? QUESTION 6 One stats class consists of 52 women and 28 men.  Assume the average exam score on Exam 1 was 74 (σ = 10.43; assume the whole class is a...
Conditional Probability Activity 1: CHC Student Survey Suppose a survey of 100 randomly selected CHC students...
Conditional Probability Activity 1: CHC Student Survey Suppose a survey of 100 randomly selected CHC students resulted in a sample of 60 male and 40 female students. Of the males, 2/3 graduated from a high school in Philadelphia, while the remainder had high school diplomas from out-of-the-city. Of the females, 3/4 were from Philadelphia high schools. This information is represented in the following contingency table: Phila. HS Out-of-City Totals Male 40 20 60 Female 30 10 40 Totals 70 30...
Employees of a local university have been classified according to gender and job type. Male Female...
Employees of a local university have been classified according to gender and job type. Male Female Faculty 110 60 Salaried Staff 50 60 Hourly Staff 80 40 If an employee is selected at random, what is the probability that the employee is a member of the hourly staff given that the employee is male? 0.124 0.235 0.260 0.286 0.333 If the scores on an aptitude test are normally distributed with mean 600 and standard deviation 50, what proportion of the...
A sample of 100 students consists of 60 females and 40 males. The purpose of the...
A sample of 100 students consists of 60 females and 40 males. The purpose of the study is to determine if the sex of the student is related to passing or failing the first test. Out of the 100 students in the sample, 70 students passed. the expected number of males passing is: 70 40 28 12 10 points    QUESTION 10 An engineer who is studying the tensile strength of a steel alloy intended for use in golf club...
Assignment 2 1. Assume that you have two biased coins and one fair coin. One of...
Assignment 2 1. Assume that you have two biased coins and one fair coin. One of the biased coins are two tailed and the second biased one comes tails 25 percent of the time. A coin is selected randomly and flipped. What is the probability that the flipped coin will come up tail? 2. One white ball, one black ball, and two yellow balls are placed in a bucket. Two balls are drawn simultaneously from the bucket. You are given...
Calculate the mean, median, mode, variance (population) and standard deviation (sample) for the following test grades:...
Calculate the mean, median, mode, variance (population) and standard deviation (sample) for the following test grades: 65, 60, 67, 71, 75, 80, 65 Use this information to answer questions #1-4. Question 1 (0.5 points) Saved The mode is: Question 1 options: 65 60 There is no modal category 75 71 Question 2 (0.5 points) Saved The median is: Question 2 options: 67 65 80 66 None of the above Question 3 (0.5 points) What is the approximate population variance for...
1. A random number generator is used to select a number from 1 to 500 ?(inclusively)....
1. A random number generator is used to select a number from 1 to 500 ?(inclusively). What is the probability of selecting the number 595 ? What is the probability? 2.Identify the sample space of the probability experiment and determine the number of outcomes in the sample space. -Randomly choosing an even number between 10 and 20, inclusive The sample space is? (Use a comma to separate answers) There are _____ outcomes in the sample space 3. Determine the number...
You are asked to do a study of shelters for abused and battered women to determine...
You are asked to do a study of shelters for abused and battered women to determine the necessary capacity I your city to provide housing for most of these women. After recording data for a whole year, you find that the mean number of women in shelters each night is 250 , with a standard deviation of 75 . Fortunately, the distribution of the number of women in the shelters each night is normal, so you can answer the following...
Suppose your friend Joanna is running for class president. The proportion of individuals in a population...
Suppose your friend Joanna is running for class president. The proportion of individuals in a population of students who will vote for Joanna on election day is 60%. You plan to conduct a poll of size n and report X, the number of individuals in your poll who plan to vote for Joanna. You also plan to compute ?̂=??, the proportion of individuals in your poll who plan to vote for Joanna. a) Explain why X is a binomial random...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT