A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the contents (i.e., of the population) is 0.22 ounces. In this problem the 0.22 is OA aparameter O B. a statistic O C. the standard error of the mean O D. the average content of colognes in the long run

MATLAB: An Introduction with Applications
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A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard
deviation of the contents (i.e., of the population) is 0.22 ounces. In this problem the 0.22 is
O A. a parameter
O B. a statistic
O C. the standard error of the mean
O D. the average content of colognes in the long run
Transcribed Image Text:A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the contents (i.e., of the population) is 0.22 ounces. In this problem the 0.22 is O A. a parameter O B. a statistic O C. the standard error of the mean O D. the average content of colognes in the long run
If the outcomes of a discrete random variable follow a Poisson distribution, then their:
O A. median equals the standard deviation.
O B. median equals the variance.
O C. mean equals the variance.
O D. mean equals the standard deviation.
Transcribed Image Text:If the outcomes of a discrete random variable follow a Poisson distribution, then their: O A. median equals the standard deviation. O B. median equals the variance. O C. mean equals the variance. O D. mean equals the standard deviation.
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