Ask Experts Questions for FREE Help !
Ask
    NicoleDwyer's Avatar
    NicoleDwyer Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 17, 2013, 04:02 PM
    probability with random sample
    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's Avatar
    mmhdcat Posts: 11, Reputation: 2
    New Member
    		  
    #2

    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's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
    Uber Member
    		  
    #3

    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's Avatar
    ebaines Posts: 12,131, Reputation: 1307
    Expert
    		  
    #4

    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's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
    Uber Member
    		  
    #5

    Mar 27, 2013, 06:29 AM
    ebaines, my laugh for the day!
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

probability for random sample [ 1 Answers ]

In the senior year of a high school graduating class at 100 students, 42 studied mathematics, 68 studied psychology, 54 studied history, 22 studied both mathematics and history, 25 studied both mathematics and psychology, 7 studied history but neither mathematics nor psychology, 10 studied all...

Given random sample find probability that sample mean? [ 0 Answers ]

X has normal distribution with mean of 107 and a standard deviation of 1.5 .if a sample of 25 students is selected at random, find the probability that sample mean is greater than 110?

Probability including finding it using a random sample? [ 7 Answers ]

A new muscle relaxant is available. Researchers from the firm developing the relaxant have done studies that indicate that the time lapse between administration of the drug and beginning effects of the drug is normally distributed, with mean of 38 minutes and standard deviation of 5 minutes. a....

1. A random sample . [ 1 Answers ]

1. A random sample of size 49 is taken from a large population, measuring the time it takes to complete a driver’s license examination. The sample mean was found to be 47 minutes, and the sample standard deviation 5.89 minutes. Construct a 95% confidence interval around the sample mean. Be sure...

View more questions Search