anonymous
  • anonymous
Suppose the contact rate for a phone survey is 78% and that 22% of people will participate in that survey. Assume that agreeing or not agreeing to participate is independent of whether the house is contacted. a) What is the probability that the next house will be contacted and refuse to cooperate? b) What is the probability of failing to contact a house, or making contact and not getting them to agree to the interview?
Mathematics
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

anonymous
  • anonymous
I got 60.84 for A...
anonymous
  • anonymous
If no one else helps you, khanacademy.com may be a useful source. How to do this has slipped my mind. :/
phi
  • phi
a) prob of contacting is 0.78 * prob refuse (1- 0.22)= 0.6084 or 60.84% looks good for (b), draw a probability tree |dw:1346975875363:dw|

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
im getting 82.84
anonymous
  • anonymous
is that right or am i doing it wrong?
phi
  • phi
Sounds good. The other way to think of it, is 1- prob(interview) 1 - 0.78*0.22= 82.84 also, if we fill in the "leaves" of the tree, they should (and do) add to 1: 0.22 0.6084 0.1716

Looking for something else?

Not the answer you are looking for? Search for more explanations.