Three random variables, U, V, W have distributions as shown in the graphs below.Which one of the three random variables has the largest standard deviation? U V W All three random variables have the same standard deviation.

The following three histograms represent the probability distributions of the three random variables X, Y, and Z.Which of the three random variables has the largest standard deviation? X Y Z All three random variables have the same standard deviation.

The graph below represents stocks, labeled A , B , and C , on the same axis. Determine which normal distribution has the largest standard deviation.A figure consists of three curves along a horizontal axis, labeled Upper A, Upper B and Upper C. Curve Upper A is farthest to the right, curve Upper B is tall and skinny, and curve Upper C is farthest to the left.Select the correct answer below:A B C

The random variable X, representing the number of items sold in a week, has the following probability distribution:Which of the three random variables has the smallest standard deviation? X Y Z All three random variables have the same standard deviation.

3, 3, 3, 3, 3What is the standard deviation of the numbers in the list above?

For a certain distribution, 10.0 is one standard deviation above the mean, and 13.0 is three standard deviations above the mean. What is the mean of the data set?