The following data are the weights (in ounces) of 8 letters recently mailed through the United States Postal Service. 0.66 0.55 0.42 0.29 0.93 0.93 0.45 0.67 What is the variance for these data? Round your answer to three decimal places, if necessary. What is the standard deviation for these data? Round your answer to three decimal places, if necessary. What do you notice about the relationship between the variance and standard deviation? Typically, the standard deviation is smaller than the variance. Is this always true? Select an answer v