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A police department reports probabilities for car thefts. What is the probability of reporting exactly 2 car thefts in a day?

a. 0.122
b. 0.257
c. 0.270
d. 0.189

User Yosefrow
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1 Answer

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Final answer:

The probability of reporting exactly 2 car thefts in a day can be calculated using the binomial probability formula.

Step-by-step explanation:

The probability of reporting exactly 2 car thefts in a day can be calculated using the binomial probability formula. The formula is: P(X=k) = (nCk) * p^k * (1-p)^(n-k), where n is the number of trials, k is the number of successes, p is the probability of success, and nCk is the combination. In this case, n = 1 (one day), k = 2 (exactly 2 car thefts), and p = 0.375 (probability of car thefts). Plugging in the values, we get: P(X=2) = (1C2) * 0.375^2 * (1-0.375)^(1-2) = 1 * 0.375^2 * 0.625^-1 = 0.3281 * 0.625^-1 = 0.3281 * 1.6 = 0.52496. So, the probability of reporting exactly 2 car thefts in a day is approximately 0.525.

User Key
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