324.sample.02 - STAT 324 Sample midterm problems 1 1\/7 of men and 1\/9 of women are color-blind 60 of population are females(a A person is chosen at

324.sample.02 - STAT 324 Sample midterm problems 1 1/7 of...

This preview shows page 1 - 2 out of 2 pages.

STAT 324 Sample midterm problems 1. 1/7 of men and 1/9 of women are color-blind. 60% of population are females.(a) A person is chosen at random and that person is color-blind. What is the probability that theperson is male? (b) A person is chosen at random and that person is male. What is the probability that the personis color-blind? 2. The life timeXof an electronic component follows the distributionf(x) =e-xforx >0 andf(x) = 0 otherwise.Three of these components operate independently in a piece of equipment.The equipment fails if at least two of the components fail. Find the probability that the equipmentwill operate for at least 2 hours without failure.

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture