The standard deviation of 25 observations is 4 and their mean is 25. If each observation is increased by 10, what is the new mean-

The standard deviation of 25 observations is 4 and their mean is 25. If each observation is increased by 10, what is the new variance-

The variance of 10 observations is 16 and their mean is 12. If each observation is multiplied by 4, what is the new mean-

The variance of 10 observations is 16 and their mean is 12. If each observation is multiplied by 4, what is new standard deviation-

The mean and standard deviation of 6 observations are 8 and 4 respectively . If each observation is multiplied by 2, find the new mean and new standard deviation of the resulting observation.

The mean of 7 observations is 7. If each observation is increased by 2, then the new mean is

The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations

The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations

The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations

The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations.