(Answered) Question - compute some probabilities for facebook friends

Statistics

Question - Compute some probabilities for Facebook friends. Suppose that 60% of your Facebook friends became your friends because you asked them to be. You select a simple random sample of 20 of your friends.

(a) What is the probability that 12 of them became your friend because you asked them?

(b) What is the probability that between 9 and 15 of them became your friends because you asked them? Include the possibilities of 9 and 15 in your calculations.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92554418
Price:- $25

Verified Expert

Priced at $50 Now at $25, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

According to a field poll 276 out of 615 of california

According to a Field Poll, 276 out of 615 of California adults feel that "education and our schools" is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of C ...

On average the parts from a supplier have a mean of 975

On average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 6.1 inches. Find the probability that a randomly selected part from this supplier will have a value between 85.3 and 109.7 inch ...

1 a stat 200 instructor wants to know if students tend to

1. A STAT 200 instructor wants to know if students tend to score differently on the lesson 4 and 5 quizzes. Data were collected from a representative sample of 60 students during the Summer 2018 semester. Data were paire ...

Amy currently has 500 in an account with an annual rate of

Amy currently has $500 in an account with an annual rate of return of 4.3%. She wants to have $3000 for a trip to Florida when she graduates in 2 years. How much will she have to save each month to afford her trip?

Please explain which formula i should use to complete the

Please explain which formula I should use to complete the following probability question: The probability that a family will buy a vacation home in Miami, malibu, or newport is 0.25, 0.10 and 0.35. What is the probabilit ...

Calculating project ocfsummer time inc is considering a new

Calculating Project OCF. Summer Time, Inc. is considering a new 3-year project that requires an initial fixed asset investment of 3.9 million. The fixed asset will be depreciated straight line to zero over its three-year ...

Show your work and solutionsnbspwhat is the npv of a

SHOW YOUR WORK AND SOLUTIONS What is the NPV of a project that costs $15,000 and returns $25,000 annually for three years if the opportunity cost of capital is 14%?

A travel weekly international transport association survey

A Travel Weekly International Transport Association survey asked business travelers about the purpose for their most recent business trip. 19% responded that it was for an internal company visit. Suppose 950 business tra ...

A comitttee of 3 persons is selected at random from a group

A comitttee of 3 persons is selected at random from a group of 5 mathematicians and 8 physicists. What is the probability that one is a mathematician

An automobile accidents occur over a 72 hour holiday period

An automobile accidents occur over a 72 hour holiday period are like events in a poisson process with = 10 per hour. Let Y be the time for the first accident. a) What is the mean of Y and variance of Y? b) Find P(Y > 15 ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert