Posted by penny lane on Tuesday, May 17, 2011 at 9:52pm.
I am preparing for a chapter test in my prob/stat class and since my teacher no longer cares about our class and the textbook is as confusing as a foriegn languaga, i am in need of help. i am trying to review an old quiz ao here is one of the questions.
the probability that a costomer selects 1,2,3,4 or 5 items at a convenience store are 3.02,.012,.023,.018 and.015, respectively.
find P(X>3.5)
find P(X<5)

probability and statistics.  TutorCat, Wednesday, May 18, 2011 at 1:03am
I think there's a mistake with the probabilities were given. 1) probabilities can't be >1 (you get greater than 100% chance). 2) the probabilities don't add up to 1
here is what I think they should be:
.32, .12, .23, .18, .15
P(x>3.5) = probability that a customer selects more than 3.5 items = p(4) + p(5) = .18 + .15
you can do the other one by yourself.

probability and statistics.  Anonymous, Monday, January 14, 2013 at 11:53am
23
Answer This Question
Related Questions
 English  Five sentence paragraph. Preparing for a test should start the first ...
 MDM4UO  A teacher provides pizza for his class if they earn an a average on any...
 Check answers please Statistics  Suppose that each student in stat. has a 9% ...
 statistics  this is a problem in my statistics class, and I am lost to me, it ...
 English  Homework Help: English Posted by rfvv on Monday, March 7, 2016 at 2:...
 algebra  how do I help my son answer this question/ cary spent 1/3 of his class...
 stat  A contract employs three types Class A , Class B and class c. to class A...
 Math ?  I have a dilemma; my English professor doesnâ€™t give us our grades so I ...
 Chemistry  Our class did an expeiment of adding sodium carbonate and calcium ...
 statistics  for mu homework, we are making histograms. on the assignment, we ...
More Related Questions