62.4k views
3 votes
A sample of 150 firecrackers contained 8 duds. How many duds should you expect in a sample of 2850 firecrackers

User Alethes
by
6.5k points

1 Answer

1 vote
you have to set up a proportion for this problem. if there were 8 duds in 50 how many in 2850.
set it up like this 8/50=x/2850. cross multiply so it’s 2850(8)=50x.
x=456
User Akhil Thayyil
by
5.7k points