Assume that an average and a standard deviation are calculated using a large number of measurements.A single data point has a(n)____ chance of falling within plus and minus two standard deviations of the calculated average.
A) 50%
B) 68%
C) 83%
D) 95%
E) 100%

Question

Quizplus · Accepted Answer

According to the empirical rule, approximately 95% of the data falls within plus and minus two standard deviations of the mean in a normal distribution.

Assume That an Average and a Standard Deviation Are Calculated