15 The table shows the number of car accidents per day and their corresponding probabilities. Find the variance (express answer in 2 decimal places). No. of accidents, x 1 2 3 4 Probability P(x) 0.35 0.25 0.20 0.1 0.1

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Q: No. of accidents, x 2 3 4 Probability P(x) 0.35 0.25 0.20 0.1 0.1

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Q: No. of accidents, x 0 1 2 3 4 Probability P(x) 0.35 0.25 0.20 0.1 0.1

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