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The amount of time it takes to complete an assignment is negatively skewed distribution with a mean of 20 minutes and a standard deviation of

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The amount of time it takes to complete an assignment is negatively skewed distribution with a mean of 20 minutes and a standard deviation of 12 minutes. If 100 students were randomly sampled, what is the mean and the standard deviation of their average time to complete the assignment? O a. The mean is 20 and the standard deviation is 1.2. O b. The mean is 20 and the standard deviation is 0.12. O C. The mean is 0.2 and the standard deviation is 0.12. O d. The mean is 20 and the standard deviation is 12. O e. The mean is 2 and the standard deviation is 1.2

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