Question
The random variable is the number of surface flaws in a large coil of galvanized steel.
Step 1
A discrete random variable is one where we can count the number of different possible outcomes. On the other hand, a continuous random variable is one where we cannot count all the different outcomes that are available to us. Show more…
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The number of flaws observed on a large coil of galvanized steel is hypothesized to follow a Poisson distribution. A random sample of 60 coils was inspected for the number of flaws. Compute the unknown expected frequency for the cell in Table Q5(c). (4 marks) Number of flaws Observed Frequency Expected frequency 0 32 28.3 1 15 21.2 2 9 ? 3 4 2.5
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