Another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. On average how many transistors would you expect to be produced with this machine before the first with a defect? What is the standard deviation? Mean = 1/p Standard deviation = sqrt(q/p^2) p is the probability of a success on any given trial q is the probability of failure on any given trial By substituting the given values into the formula, we calculate: Mean = 1/0.05 = 20 Standard deviation = sqrt(0.95/0.05^2) = 19.4935 On average, we would expect to produce 20 transistors before the first unit produced with defect. The number of transistors being produced before the first unit being defective can vary by about 19.50 transistors around the mean of 20. Is this correct