Human beings have 4 types of basic blood type: AB, A, B and O. In the US, about 43% of people are O type, 43% of people are A type, 10% of people are B type and 4% of people are AB type'. Now you are a doctor and have two patients waiting for blood transfusion. One of them has blood type O and can only accept blood type 0 transfusion; the other has blood type A and can receive either type O or A transfusion. Assume every donor's contribution can only support one patient (that is, one donor cannot donate blood to both patients). If you choose 5 donors randomly from the population, what's the probability that both of the patients are able to get blood transfusion? Round to four decimal places.

Human beings have 4 types of basic blood type: AB, A, B and O. In the US, about 43% of people are O type, 43% of people are A type, 10% of people are B type and 4% of people are AB type'. Now you are a doctor and have two patients waiting for blood transfusion. One of them has blood type O and can only accept blood type 0 transfusion; the other has blood type A and can receive either type O or A transfusion. Assume every donor's contribution can only support one patient (that is, one donor cannot donate blood to both patients). If you choose 5 donors randomly from the population, what's the probability that both of the patients are able to get blood transfusion? Round to four decimal places.

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

Before the United States vaccination began, Chickenpox caused more than 100 deaths, more than 10,000 hospitalizations and more than 4 million people had gotten chickenpox every year. Since the United States vaccination began in 1995 after about 15 years in 2010, there was a 90% decrease in deaths meaning fewer than 20 people died from chickenpox. 84% fewer hospitalizations, meaning fewer than 1,700 people are hospitalized for chickenpox. 92% fewer cases mean that fewer than 350,000 people get chickenpox every year. what is a equation that best fits with people getting chickenpox and what type of equation is this? exponential, linear, polynomial
A company that sells webcams has relocated production to 3 foreign plants: China.Turkey and Romania. After the first 20 days of production 2,380 webcams, or 28% of the total.came from Turkey and 46% from China. Quality control. carried out on all webcams discarded 119 Turkish webcams, 313 Chinese webcams and 199 Romanian webcams as defective. A webcam produced in China has a production cost of 3 euros, while one produced in Turkey has it of 5 euros Calculate: 1. the probability that a randomly chosen webcam is defective; 2. the probability that a webcam was produced in Romania, knowing that defective; 3. the probability that a webcam was manufactured in China, knowing that for sale (not defective);
Several epidemiologists conducted a cohort study of the effect of mercury exposure on the development of brain cancer. Subjects were followed for ten years. There were a total of 150,000 people in the study. Among the subjects, 76,000 were exposed to mercury and the rest were not. 52,000 of those exposed to mercury developed brain cancer, and only 1,200 of those unexposed to mercury developed brain cancer. Please create a two-by-two table. Calculate the relative risk and interpret it in a sentence. Calculate the attributable risk and interpret. Calculate the percent attributable risk and interpret. Assume that 30% of people in Rhode Island are exposed to mercury, calculate and interpret the population attributable risk and calculate and interpret the percent population attributable risk.
Fertilizer is sold in 100 pound bags labelled with the amount of nitrogen (N), phosphoric acid (P2O5), and potash (K2O) present. The mixture of these nutrients varies from one type of fertilizer to the next. For example, a 100 pound bag of Vigoro Ultra Turf fertilizer contains 29 pounds of nitrogen, 3 pounds of phosphoric acid, and 4 pounds of potash. Another type of fertilizer, Parker's Premium Starter, has 18 pounds of nitrogen, 25 pounds of phosphoric acid, and 6 pounds of potash per 100 pounds. Determine the total amount of nitrogen, phosphoric acid, and potash in the mixture of 200 pounds of Vigoro and 300 pounds of Parker's. The mixture contains pounds of potash. pounds of nitrogen, pounds of phosphoric acid, and
A motion picture industry analyst is studying movies based on epic novels. The following data were obtained for 10 Hollywood movies made in the past five years. Each movie was based on an epic novel. For these data, x1 = first-year box office receipts of the movie, x2 = total production costs of the movie, x3 = total promotional costs of the movie, and x4 = total book sales prior to movie release. All units are in millions of dollars. x1 x2 x3 x4 85.1 8.5 5.1 4.7 106.3 12.9 5.8 8.8 50.2 5.2 2.1 15.1 130.6 10.7 8.4 12.2 54.8 3.1 2.9 10.6 30.3 3.5 1.2 3.5 79.4 9.2 3.7 9.7 91.0 9.0 7.6 5.9 135.4 15.1 7.7 20.8 89.3 10.2 4.5 7.9 a) If x2 (production costs) and x4 (book sales) were held fixed but x3 (promotional costs) were increased by 1.1 million dollars, what would you expect for the corresponding change in x1 (box office receipts)? (Use 2 decimal places.)b) Test each coefficient in the regression equation to determine if it is zero or not zero. Use level of…
A type of small snail is very widespread in Japan, and colonies of the snails that are genetically similar have been found very far apart. Scientists wondered how the snails could travel such long distances. A recent study' provides the answer. Biologist Shinichiro Wada fed 174 live snails to birds and found that 26 of the snails were excreted live out the other end. The snails apparently are able to seal their shells shut to keep the digestive fluids from getting in. 1Yong, E., "The Scatological Hitchhiker Snail," Discover, October 2011, 13. (a) What is the best estimate for the proportion of all snails of this type to live after being eaten by a bird? Round your answer to three decimal places.
Please show work
450 kg of dried fruit was distributed from wholesaler A (WA) and 750 kg of dried fruit was distributed from wholesaler B (WB) to bakeries X,Y and Z. Bakery X received 157.5kg from WA and 112.5 kg from WB Bakery Y received 180 kg from WA and 450 kg from WB Bakery Z received 112.5 kg from WA and 187.5 kg from WB. What is the weight of dried fruit contained within the cakes sent to cake shops P & Q?
In the city of AZ, there are two supermarkets, X-Mart and Y-Mart. It is assumed that every shopper makes a purchase once a week at one of these supermarkets (not both).In a study, 100 samples of shoppers were taken over 10 weeks. From the study, it is known that if a shopper goes to X-Mart in one week, 85 people will continue to shop at X-Mart in the following week, and if a shopper goes to Y-Mart in one week, 70 people will continue to shop at Y-Mart in the following week.Create a transition probability table and matrix for this scenario, and then If in the first week Ivankov buys from X-Mart, what is the probability that Terry will buy from X-Mart in the third and fourth weeks?
Medical researchers performed a comparison of two drugs, clopidogrel and ticagrelor, which are designed to reduce the risk of heart attack or stroke in coronary patients. A total of 6665 patients were given clopidogrel, and 6740 were given ticagrelor. Of the clopidogrel patients, 651 suffered a heart attack or stroke within one year, and of the ticagrelor patients, 573 suffered a heart attack or stroke. Can you conclude that the proportion of patients suffering a heart attack or stroke is less for ticagrelor? Let p1 denote the proportion of patients suffering a heart attack or stroke with clopidogrel and p2 denote the proportion of patients suffering a heart attack or stroke with ticagrelor. Use the =α0.01 level of significance and the P -value method with the TI-84 Plus calculator. please state p method clearly!
An undergraduate psychology course only gives the grades of A, B, C, or F. The department has determined that there should be 20% A's given, 30% B's given, 40% C's, and 10% F's given as final grades for the course. For the spring 2021 semester, 400 students took the course and 100 students received A's, 100 students received B's, 150 students received C's and 50 students received F's, so taose are my obsérved frequencies. We want to do a Chi-square Multinomial Goodness of Fit test to see if our grading guidelines match up with what is actually happening. What is the expected frequency for the grade of C category? Round your answer to the tenths position.
Medical researchers performed a comparison of two drugs, clopidogrel and ticagrelor, which are designed to reduce the risk of heart attack or stroke in coronary patients. A total of 6720 patients were given clopidogrel, and 6679 were given ticagrelor. Of the clopidogrel patients, 551 suffered a heart attack or stroke within one year, and of the ticagrelor patients, 654 suffered a heart attack or stroke. Can you conclude that the proportion of patients suffering a heart attack or stroke is greater for ticagrelor? Let p1 denote the proportion of patients suffering a heart attack or stroke with clopidogrel and p2 denote the proportion of patients suffering a heart attack or stroke with ticagrelor. Use the α=0.10 level of significance and the P-value method with the TI-84 Plus calculator. a)State the appropriate null and alternate hypotheses. b) find P-value c)Determine whether to reject H0. d)There (is/is not) enough evidence to conclude that the mean weight loss of subjects having…