Mean & Variance Quiz

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Mean and variance concepts in data.

Mercedes Matangcas

Philippines

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Mean & Variance Quiz


Mean & Variance QuizOnline version Mean and variance concepts in data. by Mercedes Matangcas 1 The mean of a discrete random variable is interpreted as the ______________ value over repeated trials of an experiment. a expected b average c median d mode 2 The variance and standard deviation of a discrete random variable measured or described the ____________________ of the assumed values of the random variable to the mean. a shape b central tendency c correlation d dispersion 3 A small variance or standard deviation means that the assumed values or data points tend to be ___________________to the mean. a close b random c varying d far 4 A higher variance or standard deviation means that the assumed values or data points are __________________ from the mean a near b farther c random d identical 5 The mean of a discrete random variable is the long-run __________ value over repeated trials. a mode b median c average d sum 6 The standard deviation measures the ______ around the mean. a color b height c spread d frequency 7 A larger variance implies data points are more ______ from the mean. a concentrated b identical c near d dispersed 8 Smaller variance indicates observations are more ______ to the mean. a far b near c diverse d random 9 The variance is a measure of how data values ______ the mean. a persist b stay c deviate d converge 10 Standard deviation is the square root of the _____. a variance b mode c median d mean