SOLUTION: A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 60.0 minutes. Find the probability that a given class p

Algebra ->  Probability-and-statistics -> SOLUTION: A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 60.0 minutes. Find the probability that a given class p      Log On


   

Question 1148733: A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 60.0 minutes. Find the probability that a given class period runs greater than 50.5 minutes.
Find the probability of selecting a class that runs greater than 50.5 minutes.

Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
.

This probability is the ratio of the lengths of two time intervals.


One time interval is 10 minutes long, from 50.0 minutes to 60.0 minutes.


The other time interval is 9.5 minutes long, from 50.5 minutes to 60.0 minutes.


Therefore, the probability value is  P = 9.5%2F10 = 0.95.

Solved.

------------------

To see other similar solved problems, look into the lesson
    - Geometric probability problems
in this site.