What does the random variable for a binomial experiment of n trials The random v

Question

What does the random variable for a binomial experiment of n trials The random variable measures the standard deviation of n trials The random variable measures the number of failures out of n trials. The random variable measures the mean of n trials. O The random variable measures the number of successes out of n trials 2. O 011 points | Previous Answers BBUnderStat12 5.2.004. In a binomial experiment, is it possible for the probability of success to change from one trial to the next? Explain. O Yes. The probability of sucess is random and changes for each trial. nt requires that the probability be the same for success and failure. Yes. The director of the experiment can choose any probability of success for each trial. 0 No. A binomial experiment requires that the probability of success be the same for each trial. 3. 1.25/5 points | Previous Answers BBUnderStat 12 5 2.009 re freshmen, 15% are sophomores

Explanation / Answer

Solution:

1) Here option 4 is correct.

Explanation: We know x is random variable which counts the number of successes in n trials in Binomial distribution.

2) Here also option 4 is correct.

Explanation: Probabiliy of success is same for each trial in binomial distribution.

3)

a) Here you choose correct option as option (b). Good job!

In this case probability of success = 0.4

b) Here option 4 is correct.

Explanation: If sampling distribution is without replacement then we can not say trials are independent.

c) here option 3 is correct. As sampling distribution is without replacement, we always use hypergeometric distribution.

Done

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