(c) \( n=8, p=0.36, X=0 \) \( P(X)=\square, 5 \)
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To find \( P(X=0) \) when \( n=8 \) and \( p=0.36 \), we can use the binomial probability formula: \[ P(X=k) = \binom{n}{k} p^k (1-p)^{n-k} \] For \( k=0 \): \[ P(X=0) = \binom{8}{0} (0.36)^0 (0.64)^8 = 1 \cdot 1 \cdot (0.64)^8 \approx 0.0106 \] Thus, \( P(X=0) \approx 0.0106 \) or about 1.06%. Now let’s think about where this kind of calculation pops up in real life. When dealing with binomial probabilities, such as this example that involves successes and failures, commonly, this is seen in quality control processes. For instance, in a factory, if an item passes a quality check 36% of the time, understanding the likelihood of a batch having no items pass can significantly impact decisions regarding production adjustments or further testing, making statisticians essential for effective operations.
