Estimate this probability for n

Assignment Help Basic Statistics
Reference no: EM131796637

A dormitory has n students, all of whom like to gossip. One of the students hears a rumor, and tells it to one of the other n -1 students picked at random. Subsequently, each student who hears the rumor tells it to a student picked at random from the dormitory (excluding, of course, himself/ herself and the person from whom he/ she heard the rumor). Let pr be the probability that the rumor is told r times without coming back to a student who has already heard it from a dormitory mate. So p1 = p2 = 1, and pn =  0.

a) Find a formula for pr for r between 3 and n - 1.

b) Estimate this probability for n = 300 and r = 30.

Reference no: EM131796637

Questions Cloud

Determining the incomes of the component corporations : When an indirect ownership is present, why is a specific ordering necessary for determining the incomes of the component corporations
There are boxes each with two drawers : There are boxes, each with two drawers. Box 1 has a gold coin in each drawer, and box 2 has a silver coin in each drawer.
Compute what was the total amount of manufacturing costs : What was the total amount of manufacturing costs assigned to the 8,000 units in the ending work in process
What is total amount of debt on which sarah deduct interest : On July 31, of the current year, Sarah borrows $110,000 to purchase. What is the total amount of debt on which Sarah can deduct interest in the current year.
Estimate this probability for n : a) Find a formula for pr for r between 3 and n - 1. b) Estimate this probability for n = 300 and r = 30.
What is the effect on net income : What is the effect on net income (positive or negative) if it instead buys the widget from an outside supplier for $22 per unit
Explain any usp or competitive advantages the company : Explain any USP or competitive advantages the company may possess that enables it to enter this segment.
What is the value of the bond based on the market price : What is the current yield of this bond? What is the value of the bond based on the market price of the common stock
What would the total interest be for the twenty year loan : What is the difference in total interest between the 30-year loan and the 20-year loan? What would the total interest be for the 20 year loan?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Random number generators

The purpose of this exercise is to determine whether a random number generator really produces a random sequence of observations.

  Identify the sample space of the probability experiment and

identify the sample space of the probability experiment and determine the number of outcomes in the event. draw a tree

  It is decided to measure the resistance of sheets of a

it is decided to measure the resistance of sheets of a certain metal at temperatures x of 100k 200k 300k 400k and

  A deck of cards is shuffled and you choose one at random

a deck of cards is shuffled and you choose one at random observe its colour and replace it in the set. the cars are

  Two-way between-subjects factorial anova

Why is a two-way between-subjects factorial ANOVA the correct statistic to use for this research design?

  Confidence interval for average number of year of experience

A random sample of 28 executives gives x‾= 6.7 years and s = 2.4 years.- Give a 99% confidence interval for the average number of years of experience for all executives in this branch.

  Non parametric test-mann whitney wilcoxon test

Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?

  The housekeeping services department of ruger clinic a

the housekeeping services department of ruger clinic a multi-specialty practice in toledo ohio had 100000 in direct

  Find the probability of each described outcome

Lefties. Assume that 13% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below.

  Probability the product was made at the salt lake city plant

Continuing with the ECCO company from Problem, when a customer returns one of the alarms under warranty, the quality manager logs data on the product.

  Explain the practical implications of the hypothesis test

Travel and Transportation In July 2013 a train carrying 72 tank cars filled with oil exploded and rolled off the tracks in Lac-Mégantic, Quebec.

  Translate statements into symbolic form- emerald collection

Translate the following statements into symbolic form using capital letters to represent affirmative English statements.- Tiffany and Ben Bridge will release an emerald collection unless Zales and Kay do not.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd