Question
A machine produces bolts with an average diameter of 0.25 in. and a standard deviation of 0.02 in. What is the probability that a bolt will be produced with a diameter greater than 0.3 in.?
Step 1
This is done by subtracting the mean from x and dividing by the standard deviation. This process is also known as z-score calculation. In this case, the mean (μ) is 0.25 and the standard deviation (σ) is 0.02. The value of x we are interested in is 0.3. Show more…
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