It is known that in a batch of milk cartons, 30% are underfilled. In a sample of six milk cartons the probability that two milk cartons are full is: Select one:
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Q: selected
A: It is given that - n = total number of observations = 4 p = probability of success = 16.5100=0.165…
Q: In a certain Country, 47 percent of the population are on a strict diet. In a sample of 20…
A: It's binomial probability distribution
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- A manufacturer of aluminum sheets, finds that on the average, 12.5% of his sheets are rejected because they are either oversize or undersize. What is the probability that a batch of 10 sheets will contains? a. 3 to 4 rejected sheets. b. At least 2 rejected sheet.A sociologist is analyzing Social Security data. The number of individuals in the sample is 5. The probability that an individual receives Social Security is 20%. What is the probability that exactly 3 of the 5 individuals receive Social Security? O 0.0512 O 0.0305 O 0.6125 O 0.1024Of all 3- to 5-year-old children, 56% are enrolled in school. If a sample of 500 such children is randomly selected, find the probability that the sample proportion of students who are enrolled in school is greater than 0.5.
- Based on a smartphone survey, assume that 43% of adults with smartphones use them in theaters. In a separate survey of 258 adults with smartphones, it is found that 110 use them in theaters. a. If the 43% rate is correct, find the probability of getting 110 or fewer smartphone owners who use them in theaters. b. Is the result of 110 significantly low?Use the data in the following table, which lists survey results from high school drivers at least 16 years of age. Assume that subjects are randomly selected from those included in the table. Drove When Drinking Alcohol? No 3171 4430 Yes Texted While Driving 714 No Texting While Driving 172 If four different high school drivers are randomly selected, find the probability that they all drove when drinking alcohol. The probability that four randomly selected high school drivers all drove when drinking alcohol is (Round to six decimal places as needed.)R. H. Bruskin Associates Market Research found that 40% of Americans do not think that having a college education is important to succeed in the business world. If a random sample of five Americans is selected, what is the probability that At most 3 people will agree with that statement. Select one: a. 1 O b. 0.913 c. 0.8 O d. 0.7
- A high percentage of people who fracture or dislocate a bone did not see a doctor for that condition. Suppose the percentage is 1%. Consider a sample in which 300 people are randomly selected who have fractured or dislocated a bone.i. What is the probability that fewer than four of them did not see a doctor?ii. What is the probability that more than seven of them did not see a doctor?The 2010 census found that 13.9% of adults in the United States identified themselves as being of Hispanic origin. An opinion poll plans to interview 1500 adults at random. Find the probability that such a sample will contain 12% or fewer individuals of Hispanic origin. a. 0.017 O b.0.015 Oc.0.983 O d.0.013The Wilson family had 9 children. Assuming that the probability of a child being a girl is 0.5, find the probability that the Wilson family had: at least 6 girls? At most 4 girls?
- A recent survey found that 60% of all adults wear sunglasses for driving. In a random sample of 10 adults, what is the probability that at least seven wear sunglasses?Sixteen percent of all sports cars are painted red. Given a random sample of 250 sports cars, find the probability that exactly 31 of them will be painted red.A car insurance company has determined that 9% of all drivers were involved in a car accident last year. Among the 10 drivers living on one particular street, 3 were involved in a car accident last year. If 10 drivers are randomly selected, what is the probability of getting 3 or more who were involved in a car accident last year? O a. O b. O C. O d. 0.4435 0.9548 0.0541 0.0452