(a) What is the probability that a randomly selected 49- to 52-year-old mother who had a live birth in 2015 has had her fourth live birth in that year? (Type an integer or a decimal.)

A shipment of 50 inexpensive digital​ watches, including 10 that are​ defective, is sent to a department store. The receiving department selects 10 at random for testing and rejects the whole shipment if 1 or more in the sample are found defective. What is the probability that the shipment will be​ rejected? (Simplify your answer. Type an integer or decimal rounded to two decimal places as​ needed.)

Coronary bypass surgery: A healthcare agency reported that 49% of people who had coronary bypass surgery in 2008 were over the age of 65. Fifteen coronary bypass patients are sampled Part: 074 Part 1 of 4 (a) What is the probability that exactly 10 of them are over the age of 65? Round the answer to four decimal places. The probability that exactly 10 of them are over the age of 65 is ___ X

Do Generation X and Boomers differ in how they use credit cards? A sample of 1,000 Generation X and 1,000 Boomers revealed the results in the accompanying table. Click the icon to view the table. If a respondent is selected at random, what is the probability that he or she a. pays the full amount each month? b. is a Generation X and pays the full amount each month? c. is a Generation X or pays the full amount each month? d. Explain the difference in the results of (b) and (c). a. The probability that a randomly selected respondent pays the full amount each month is (Round to three decimal places as needed.) b. The probability that a randomly selected respondent is a Generation X and pays the full amount each month is (Round to three decimal places as needed.) c. The probability that a randomly selected respondent is a Generation X or pays the full amount each month is (Round to three decimal places as needed.) d. What is the difference in the results of (b) and (c)? A. The two events…

According to a study, 74% of K-12 schools or districts in a country use digital content such as ebooks, audio books, and digital textbooks. Of these 74%, 5 out of 10 use digital content as part of their curriculum. Find the probability that a randomly selected school or district uses digital content and uses it as part of their curriculum. The probability that a randomly selected school or district uses digital content and uses it as part of their curriculum is (Round to three decimal places as needed.) Re Lec Les orrect: rary

Suppose 90% of U.S. adults think social media is useful in daily life. Two adults were randomly selected, what's the probability that one think social media is useful, the other thinks not? a) (0.1)(0.1) b) (0.1)(0.9) c) (0.9)(0.9) d) (0.9)(0.1) x 2

WINDO In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use by the household. (No two respondents were from the same household.) Among the respondents, 208 answered "none," 285 said "one," 361 said "two," 140 said "three," and 56 responded with four or more. A survey respondent is selected at random. Find the probability that his/her household has four or more cell phones in use. Is it unlikely for a household to have four or more cell phones in use? Consider an event to be unlikely if its probability is less than or equal to 0.05. P(four or more cell phones) = (Round to three decimal places as needed.) M

Golfers arrive at the starter's booth of a public golf course at a rate of 8 per hour during the Monday-to-Friday midweek period. If a golfer has just arrived. What is the probability that the next golfer will arrive within 15 minutes (0.25 hour)?

A college sends a survey to selected members of the class of 2019. Of the  1,942   people who graduated that year,  714  were women, of whom    106    went on to graduate school. Of the  male graduates,   171   went on to graduate school. An alumni member is selected at random. What is the probability that the alumni is female? Note: For any final answer that has up to  four decimal places, enter your answer without rounding the number. For any answers with more than four decimal values, round your final answer to four decimal places.

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