QUESTION9 Which of the following is a characteristic of a binomial experiment? O

Question

QUESTION9 Which of the following is a characteristic of a binomial experiment? Oat least 2 outcomes are possible the probability changes from trial to trial the trials are independent O None of these alternatives is correct. QUESTION 10 The standard deviation of a binomial distribution is O None of these alternatives is correct. QUESTION 11 Pinky Bauer, Chief Financial Officer of Harrison Haulers, Inc., suspects irregularities in the payroll system, and orders an inspection of a random sample of vouchers issued since January 1, 2006. A sample of ten vouchers is randomly selected, without replacement, from the population of 2,000 vouchers. Each voucher in the sample is examined for errors and the number of vouchers in the sample with errors is denoted byx. If 20% of the population of vouchers contains errors, the mean value of x is 400 2 200

Explanation / Answer

9)

the trails are independent

10)

none of these al;ternatives are correct ; as std deviaiton =sqrt(np(1-p))

11)

here mean =np=200*0.20=400

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