View Full Version : probability with random sample
NicoleDwyer
Mar 17, 2013, 04:02 PM
In summit county 60% of the voters are democrats. What is the probability that a random sample of ten summit county voters will contain:
a). Exactly 6 democrats
b). At least 7 democrats
c). 0 democrats
d). All democrats
mmhdcat
Mar 26, 2013, 02:16 PM
The answer is A) exactly 6 democrats. If 60% of the county is democratic, then that means out of 100 citizens, 60 are democrats. If you simplify this, then out of 10 citizens, 6 are democrats.
JudyKayTee
Mar 26, 2013, 03:24 PM
This is the second time I have reminded you that AMHD does not answer homework - that's the policy. You agreed to AMHD rules when you opened your account.
Please respect how AMHD operates.
ebaines
Mar 27, 2013, 05:59 AM
mmhdcat's response doesn't help at all, so in that sense he's not doing the OP's homework for her.
Nicole: hint - use the binomial probability formula - it's in your text book. Post back showing us what you get for answers and we'll check them for you.
JudyKayTee
Mar 27, 2013, 06:29 AM
ebaines, my laugh for the day!