Probability Within One Standard Deviation
A random sample of 120 microchips is selected from a large production run. The probability of a microchip being defective is 0.08, and defects occur independently. Let X be the random variable representing the number of defective microchips. Which of the following is closest to the probability that X is within one standard deviation of its mean?
A
0.50
B
0.69
C
0.95
D
0.997
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