Question:
A random sample of computer users were asked which browser they primarily relied on for
surfing the Internet and whether this browser was installed on a desktop or laptop computer.
The following contingency table shows these results :
The probability that a randomly selected person from this sample used the Chrome browser
and used a laptop computer is ________.0.308 \
The probability that a randomly selected person from this sample used the Safari browser or used a
laptop computer is ________.0.792
The probability that a randomly selected person from this sample used the Internet Explorer
and the Firefox browser is ________.0.00
Question:
The following contingency table shows the number of two-bedroom apartments grouped by
monthly rent and location
The probability that a randomly selected apartment from this group has a monthly rental from
$700 to under $800 is ________.0.48
The probability that a randomly selected apartment from this group has a monthly rental from
$800 to under $900 or is located in York is ________.0.536
Question
The following contingency table shows the number of customers who bought variousbrands of digital
cameras at Walmart and Best Buy.
The probability that a randomly selected customer from this sample bought a Sony camera
and purchased the camera at Best Buy is ________.0.064
The probability that a randomly selected customer from this sample bought a Canon camera
or a Nikon camera is________.0.392
Question:
Dempsey's Garage repairs domestic and import cars. The following table shows the number of
cars that have been serviced by age and type during the last month.
The probability that a randomly selected car from this group was less than 10 years old is
________.0.60
The probability that a randomly selected car from this group was a domestic car or from 0 to
under 5 years old is ________.0.60
A survey asked randomly selected adults 18-29 years old to indicate their working status. Theresults
are shown in the following table
The probability that a randomly selected adult 18-29 years old is unemployed is
________.0.22