In the Sanatorium For Acute Intellectual Malnutrition, a nourishing twelve course Christmas Exam is finally administered to 20 starving statistics orphans who are seated in a circle. Having been deprived to the point of not feeling hungry, each student randomly shoves the exam to the fellow on his right or the one on his left. How many orphans on average will end up without a test?

In the Sanatorium For Acute Intellectual Malnutrition, a nourishing twelve course Christmas Exam is finally administered to 20 starving statistics orphans who are seated in a circle. Having been deprived to the point of not feeling hungry, each student randomly shoves the exam to the fellow on his right or the one on his left. How many orphans on average will end up without a test?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

Use the following information for the question. A group of home gardeners want to test whether the type of soil used to grow heirloom tomatoes has an effect on the number of tomatoes harvested. Gardeners randomly assigned tomato plants to be grown in soil with no fertilizer, commercial plant food, and homemade compost. All other growing conditions were kept the same. Forty plants were assigned to each group. At the end of the growing season the number of tomatoes harvested was counted. Assume that all other conditions for the ANOVA test have been met. One-way ANOVA F=0.762135 P=0.5202354 Factor df-2 SS=710.349206 MS=355.174603 Using the test results provided, test the hypothesis that soil treatment affects the number of tomatoes harvested. Use a significance level of 5%. Choose the correct decision regarding the null hypothesis and correct conclusion. O Reject Ho. We can conclude that the treatment of the soil affects the number of heirloom tomatoes harvested. O Reject Ho- We can…
The nationwide adult smoking rate is 17.3%. In a random sample of 3647 American adults, how many of these are likely to smoke? Round to the nearest integer.
Is the average time to complete an obstacle course longer when a patch is placed over the right eye than when a patch is placed over the left eye? Thirteen randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Time to Complete the Course Right 43 42 45 43 42 43|| 44 44 Left 42 42 47|| 41 42 43 46 || 44 Assume a Normal distribution. What can be concluded at the the a = 0.01 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v (please enter a decimal) H: Select an answer v Select an answer v| Select an answer v (Please enter a decimal) b. The test statistic ? v (please…
Use the following information for the question. A group of home gardeners want to test whether the type of soil used to grow heirloom tomatoes has an effect on the number of tomatoes harvested. Gardeners randomly assigned tomato plants to be grown in soil with no fertilizer, commercial plant food, and homemade compost. All other growing conditions were kept the same. Forty plants were assigned to each group. At the end of the growing season the number of tomatoes harvested was counted. Assume that all other conditions for the ANOVA test have been met.State the null and alternative hypothesis.
In a Harris poll of 2302 adults, 14% said they have a tattoo. Approximately how many adults have a tattoo?
Dr. Loras Tyrell was curious to see if his students actually saved money by purchasing books from sources other than the college bookstore. He administered a survey to all his students asking how they obtained their book (Bookstore, Rented, ebook, or on the web – WebBooks) and how much they paid for the book. He obtained the information below. If the values are normally distributed, we know that of the students who purchased the eBook, about 95.4% of those students paid approximately $----- to ----?
Rose randomly surveyed 50 students and found that 15 had a part-time job. If there are 750 students in Rose's school, predict the total number of students with a part-time job
In your Statistics class, your final grade is based on four categories. The categories are tests, labs, assignments, and a final exam. Suppose you earned the following grades in each of the categories; 76% on tests, 88% on labs, 97% on assignments, and 51% on the final exam. If tests are worth 22%, labs are worth 5%, assignments are worth 14%, and the final exam is worth 59%, determine your final grade in the course. Record the grade below as a percentage accurate to two decimal places. Final Grade: Check Answer nere to search ※一 2 F3 F4 F5 F6 F7 F8 F9 F10 F11 %23 & * 4. 7 R Y U S. D F G H. J K L C * CO B ト

In a random sample of 1000 persons from town A, 400 are found to be consumers of wheat. In a sample of 800 from town B, 400 are found to be consumers of wheat. Discuss the question whether the data reveal a significant difference between A and B so far as the proportion of wheat consumers is concerned.
Suppose 20% of the students on campus smoke. You select two students at random. In what percentage of samples will both students be smokers?
Teacher of a class wants to study the reasons for students' absence. What is needed for her to study? a. Organize the data and analyze it b. Collect the data on the students' absence c. Investigate the reasons and draw conclusion d. All the above
A researcher studying allergies to animals is interested in performing a study at the local elementary school. At Pineview Elementary, there are 4 1st grade classrooms. The researcher picks 2 of the 4 classrooms and asks every 1st grader in the 2 classrooms what type of animal they own (cat, dog, rabbit, etc.). He also asks how often they experience allergies. What is the sample?