A factory use predictive maintenance to monitor the performance and condition of operation tools during regular operation to reduce the likelihood of failures. From the analysis, the number of operation tools failures in a day follows a Poisson distribution with an average of 1.25 failures. On a particular day, the stock keeper reported that there were only five replacement tools in stock. A new delivery of replacements tools will only arrive after four days. If all five replacement tools are used before the new delivery arrives, a further replacement cannot be done until the delivery arrives. (i) Determine the probability that three replacements of operation tools are required over the next four days. (ii) Determine the expected number of replacements made over the next four days. (You must show all of the details of your calculations)

Q: can you explain the first few questions aswell

A: Frequency Polygon: A frequency polygon is a graph that displays the distribution of a dataset. In…

Q: answers were wrong.

A: X Frequency 0 2 1 6 2 8 3 36 4 50 5 68 6 55 7 36 8 19 9 10 10 4

Q: Is the answer no or yes for this question?

A: There are 550 students in your graduating class. We need to determine wheather there are at least 3…

Q: Is this for question 2 or 3?

A: The standard deviation is 0.2.

Q: this is a different question. it is not my question

A: Given that Sample size=17  Probability of success=0.748  Probability of failure=0.252 We have to…

Q: it said your answer was incorrect

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Q: what about questions 4-15?

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Q: what would be the conclusion?

A: From the obtained results, the p-value is 0.0676.

Q: The answer

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Q: This is all one question.

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Q: this the whole question.

A: Question: The path of the flight is given by the following parametric equation, xt=t2ln 3t+1 and…

Q: Can you answer question 8 too

A: Given data : Four groups ,K = 4 N = 32Education : { 62,81,75,58,67,48,26,36 } Business management :…

Q: The second question wasn't answered.

A: Probability is the measure of the chance that an event is likely to happen. It is calculated by…