1.4) A local bottling company has determined the number of machine breakdowns per month and their respective probabilities shown below.   Based on the given information: Number of Breakdowns Probability 0 0.12 1 0.38 2 0.25 3 0.18 4 0.07 a) What is the probability of at least 3 breakdowns in a month? b) What is the probability of no breakdowns in a month? c) What is the expected number of machine breakdowns per month? d) What is the standard deviation of machine breakdowns per month?

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