Calculate the mean for samples for which the sample size and sum x are given below. a n=10,sum x=84 b n=16,sum x=352 c n=45,sum x=35 d. n=18,sum x=238 a. bar (x)= (Round to two decimal places as needed.)

To calculate the mean for samples, we can use the formula: where is the sum of the data values and is the sample size.Let's calculate the mean for each of the given samples:a. For , we can substitute these values into the formula: Therefore, the mean for this sample is 8.4.b. For , we can substitute these values into the formula: Therefore, the mean for this sample isc. For , we can substitute these values into the formula: Therefore, the mean for this sample is 0.78.d. For , we can substitute these values into the formula: Therefore, the mean for this sample is 13.22.In summary, the means for the given samples are:a. b. c. d.