190The rule of seven used by quality control engineers states that if a run of seven or mo

190 The rule of seven used by quality control engineers states that if a run of seven or more samples lays on one side of the process mean, then the process is out of control. What is the probability that this condition is the result of random variations.

A. 14.30%

B. 3.12%

C. 2.73%

D. 1.56%

E. 0.78%