In a village, power cuts occur randomly at a rate of 3 per year. Find the probability that in a given year there will be: a) Exactly 7 power cuts. b) At least 4 power cuts.

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Q: 21. The most common graph in this class has been the normal distribution, which is symmetric. An…

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Q: Given data is 157, 149, 162, 168, 155, 155, 157.48, 165, 157, 157 sample size (n)=10 sample mean =…

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