Mail Order A mail order company has a 10\% success rate. If it mails advertisements to 521 people, find the probability of getting less than 49 sales. Round $z$-value calculations to 2 decimal places and final answer to at least 4 decimal places. $P(X < 49) = $
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μ = 521 * 0.10 μ = 52.1 The standard deviation (σ) of the distribution can be calculated using the formula: σ = √(n * p * (1 - p)) σ = √(521 * 0.10 * (1 - 0.10)) σ = √(521 * 0.10 * 0.90) σ = √(46.89) σ ≈ 6.85 Show more…
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