question archive According to a study, 90% of K-12 schools or districts in a country use digital content such as ebooks, audio books, and digital books
According to a study, 90% of K-12 schools or districts in a country use digital content such as ebooks, audio books, and digital books
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According to a study, 90% of K-12 schools or districts in a country use digital content such as ebooks, audio books, and digital books. Of these 90%, 9 out of 20 use digital content as part of their curriculum. Find the probability that a randomly selected school or district use digital content and uses it as part of their curriculum.
