SOLUTION: What kinds of Web sites do males aged 18 to 34 visit most ofen? Was found about 50% of male Internet users in this age group visit an auction site such as eBay at leat once a month
Algebra ->
Probability-and-statistics
-> SOLUTION: What kinds of Web sites do males aged 18 to 34 visit most ofen? Was found about 50% of male Internet users in this age group visit an auction site such as eBay at leat once a month
Log On
Question 442720: What kinds of Web sites do males aged 18 to 34 visit most ofen? Was found about 50% of male Internet users in this age group visit an auction site such as eBay at leat once a month.Interview a random sample of 12 male Internet users aged 18-34.
Find the probability that at least 8 of the 12 have visited an auction site in the past month! Answer by ewatrrr(24785) (Show Source):
Hi
about 50% of male Internet users in this age group visit an auction site such
as eBay at leat once a month.
random sample of 12 male Internet users aged 18-34.
Find the probability that at least 8 of the 12 have visited an auction site in the past month!
P(at least 8 of 12) = P(8 ≤ x ≤ 12) = .1938
Note: The probability of x successes in n trials is:
P = nCx* where p and q are the probabilities of success and failure respectively.
In this case p & q are = .5
nCx =
