Ask Question
9 February, 02:35

The time required to finish a test in normally distributed with a mean of 80 minutes and a standard deviation of 15 minutes what is the probability That a student chosen at random will finish the test in more than 110 minutes

+3
Answers (1)
  1. 9 February, 02:46
    0
    Let the time taken to f, inish the test be x.

    P (x > 110) = 1 - P (x < 110) = 1 - P (z < (110 - 80) / 15) = 1 - P (z < 2) = 1 - 0.9773 = 0.0227
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “The time required to finish a test in normally distributed with a mean of 80 minutes and a standard deviation of 15 minutes what is the ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers