The values of a numeric variable were as follows: 148, 120, 91, 178, 202, 115, and, missing. The mean value of the variable is 142.33.

Question

Quizplus · Accepted Answer

To find the mean, add all the known values and divide by the total number of values. The known values sum up to 854 (148 + 120 + 91 + 178 + 202 + 115). Assuming the missing value is x, the equation for the mean (142.33) with 7 total values is (854 + x) / 7 = 142.33. Solving for x gives a different result, indicating the initial statement is incorrect without even solving for x, as the mean provided does not match the sum of the known values divided by the total number of values.

The Values of a Numeric Variable Were as Follows: 148