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Variance and Standard Deviation

Quiz | Statistics | Variance and Standard Deviation

Which of the following gives the formula of Standard Deviation?

What is the relation between Standard Deviation and Variance?

What is the formula for coefficient of variation?

The reaction time to a stimulus for a certain drug has a mean of 2.5 seconds and a standard deviation of 0.3 seconds. Find the z score for the reaction time of 3.1 seconds?

Find the coefficient of variation if mean is 100 and Standard Deviation is 5?

Which of the following is true about Bell curve?

Find the Standard Deviation if the variance is 4?

Use Chebyshev’s rule to find what percent of the values will fall between 10 and 26 for the data set with mean of 18 and standard deviation of 2?

If the Z score is larger then _______