Based on the information in Data Set E2,what is the mean squared error (accurate to 2 decimals)?
A)7.00
B)1.40
C)1.00
D)0.80

Question

Quizplus · Accepted Answer

The mean squared error can be calculated by taking the difference between each observed value and its corresponding predicted value, squaring them, summing the squared differences, and dividing by the sample size. Using the formula, we get:

MSE = (1^2 + 0.2^2 + 2.8^2 + 1.6^2 + 1^2) / 5 = 1.4

Therefore, the best choice is B, which corresponds to the mean squared error of 1.40.

Based on the Information in Data Set E2,what Is the Mean