Question
A professor is interested in the average length of books in her library. She has divided her books into a few different categories:235 books on
A professor is interested in the average length of books in her library. She has divided her books into a few different categories:235
books on mathematics,290
books on sports, and166
books on interior design. Rather than examining all the books, she plans to use a stratified sample of50
books. How many of the sports books should she choose? Enter a whole number.
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Calculus Early Transcendentals
Authors: James Stewart
7th edition
538497904, 978-0538497909
