Based on data from a USA Today Snapshot, 72% of adults have security concerns about online banking. Find the probability that among 30 randomly selected adults, exactly 20 have security concerns. Among 30 random adults, is 20 an unusually low number for those who have security concerns?
Answer to relevant QuestionsCBS televised a recent Super Bowl football game between the New Orleans Saints and the Indianapolis Colts. That game received a rating of 45, indicating that among all U.S. households, 45% were tuned to the game (based on ...Based on data from the Centers for Disease Control, the probability of a randomly selected person having gonorrhea is 0.00114. In tests for gonorrhea, blood samples from 16 people are combined. What is the probability that ...In an analysis of preliminary test results from the XSORT gender selection method, 14 babies are born and it is assumed that 50% of babies are girls, so n = 14 and p = 0.5. Nine-year-old Emily Rosa conducted this test: A professional touch therapist put both hands through a cardboard partition and Emily would use a coin flip to randomly select one of the hands. Emily would place her hand just ...In analyzing hits by V-1 buzz bombs in World War ii, South London was partitioned in to 576 regions, each with an area of 0.25 km2. A. total of 535 bombs hit the combined area of 576 regions. Assume that we want to find the ...
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