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Math-probability

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A sporting goods store estmates that 20% of the students at a nearby university ski downhill and 15% ski cross country. Of those who ski downhill, 40% also ski cross country. What percentage of these students ski both down hill and cross country? Write as a decimal.

  • Math-probability - ,

    Down-hill =20%
    Cross-country =15%
    In down-hill and cross-country (20%)(40%) = 0.08

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