of the volunteers donating blood in a clinic, 60% have the Rhesus (Rh) factor present in their blood.(a) If five volunteers are randomly selected, what is the probability that at least one does not have the Rh factor? (Round your answer to four decimal places.)0.9220(b) If five volunteers are randomly selected, what is the probability that at most four have the Rh factor? (Round your answer to four decimal places.)6723(c) What is the smallest number of volunteers who must be selected if we want to be at least 90% certain that we obtain at least five donors with the Rh factor? (Round youranswer up to the nearest donor.)x donorsYou may need to use the appropriate appendix table or technology to answer this question.Need Help? Redwww

Answered: of the volunteers donating blood in a…

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...

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A textile manufacturing process finds that on average, three flaws occur per every 50 yards of material produced. What is the probability that exactly 2 flaws occur in a 50 yard piece of material? Round your answer to three decimal places with a zero to the left of the decimal. E.g., 12% would be 0.120, and 0.15551 would be 0.156.
The chances of a pine tree in a particular forest being effected by the pine beetle is 10 percent. If you randomly select 20 trees for testing, what is the probability that fewer than 2 will be infected by the pine beetle? Round your answer to three decimal places, e.g. 0.619.
In the winter, guests who visit Yosemite National Park like to stay at an overnight lodge in the park 71 % of the time. Find the probability that among 11 guests surveyed exactly 3 guests like to stay at an overnight lodge in the park. P(x = 3) =
What is the probability that zz is greater than −0.25
A group of 11 students' cholesterol levels are tested. Suppose the probability of a student having a healthy cholesterol level is 0.25. What is the probability that exactly seven out of 11 students have healthy cholesterol levels? (Round your answer to three decimal places.)
Assume it was determined from a random sample of customers that the probability of buying cake is 40%; the probability of buying ice cream is 62%; and the probability of buying cake or ice cream is 86%. What is the probability of buying chocolate ice cream and frozen yogurt? (Round your answer to 2 decimals)
A sample of 400 adults found that 82 have high blood pressure. However, 98 of those studied reported being unwilling to change their diet. Based on this sample, if an adult is chosen at random, what is the probability that he or she is open to trying to eat more healthfully? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.
A certain insecticide kills 60% of all insects in laboratory experiments. A sample of 12 insects is exposed to the insecticide in a particular experiment. What is the probability that exactly 6 insects will die? Round your answer to four decimal places.
The table summarizes results from pedestrian deaths that were caused by automobile accidents. DriverIntoxicated? Pedestrian Intoxicated? Yes No Yes 48 68 No 280 579 If one of the pedestrian deaths is randomly selected, find the probability that the driver was not intoxicated. (Please enter a decimal, and round your answer to 4 decimal places.)Probability =
A soccer team estimates that they wil score on 12% of the comer kicks. In next week's game, the team hopes to kick 13 coner kicks. What are the chances that they will score on 4 of those opportunities? The probability is (Type an integer or a decimal. Round to three decimal places as needed.)
A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho: Ha: р = 0.8 p0.8 What type of test is being conducted in this problem? A. Left-tailed test B. Two-tailed test C. Right-tailed test
A certain insecticide kills 60% of all insects in laboratory experiments. A sample of 7 insects is exposed to the insecticide in a particular experiment. What is the probability that exactly 3 insects will die? Round your answer to four decimal places.

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