Tuesday
September 23, 2014

Homework Help: math

Posted by anonymous on Friday, October 19, 2007 at 9:10pm.

If 90% of the households in a certain region have an answering machines and 50% have both answering machines and call waiting, what is the probability that a household chosen at random and found to have an answering machine also has call waiting?

This is what I think...(Am I correct?)
P(answering and call waiting/answering machine)=(.50/.90)=.56 or 56%

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

college,stats/ PLZ HELP:( need it within nxt 6hrs - Among Canadian households, ...
math - During the last hour, a telemarketer dialed 20 numbers and reached 4 busy...
college math - During the last hour, a telemarketer dialed 20 numbers and ...
bus stats - A manufacturing company has 5 identical machines that produce nails...
StatIstics - "Household size" is defined as the number of people living in a ...
statics - I have to come up with a statics problems. i have to make up a problem...
please help statics - I have to come up with a statics problems. i have to make ...
grammar - Diagram the simple subject and the simple predicate of each sentence. ...
Math OPTIMIZATION - A plastics firm has received an order from the city ...
intro to statisics - 78% of US homes have a telephone answering device. In a ...

Search
Members