Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
please help, I really don't understand it.... a total of 9 women and 12 men reside in the 21 apartment that are in a certain apartment building, one person to each apartment. If a pool taker is to select one of the apartments at random, what is the probability that the resident of the apartment selected will be a women who is a student? 1) of the women, 4 are student 2) of the women, 5 are not student the answer is B looks easy, but I don't understand why B thanks in advance