Home Work 4
:
1
. A Harris Interactive survey for InterContinental Hotels & Resorts asked respondents, “We
traveling internationally, do you generally venture out on your own to experience culture, or stick
with your tour group and itineraries?” The survey found that 23% of the respondents stick with their
tour group (
USA Today,
January 21, 2004).
a.
In a sample of six international travelers, what is the probability that two will stick with
their tour group?
b.
In a sample of six international travelers, what is the probability that at least two will
stick with their tour group?
c.
In a sample of 10 international travelers, what is the probability that none will stick with
the tour group?
2
. When a new machine is functioning properly, only 3% of the items produced are defective.
Assume that we will randomly select two parts produced on the machine and that we are interested
in the number of defective parts found.
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 02/06/2012 for the course ECON 103 taught by Professor Gispy during the Spring '11 term at Prairie State College .
 Spring '11
 Gispy

Click to edit the document details