Problem

Save A binomial probability is given. Write the probability in words. Then, use a continuity correction to convert the binomial probability to a normal distribution probability. \[ P(x<60) \] Write the probability in words. The probability of getting fewer than 60 successes. Which of the following is the normal probability statement that corresponds to the binomial probability statement? A. $P(59.559.5)$ C. $P(x<59.5)$ D. $P(x>60.5)$ E. $P(x<60.5)$

Solution

Step 1 :The probability in words is: The probability of getting fewer than 60 successes.

Step 2 :The question is asking to convert the binomial probability to a normal distribution probability using a continuity correction. The continuity correction is used when we approximate a discrete distribution, like the binomial, with a continuous distribution, like the normal.

Step 3 :When we use the normal distribution to approximate the binomial distribution, we have to adjust the discrete x values to fit the continuous distribution. This is done by adding or subtracting 0.5 to the x value, depending on the direction of the inequality.

Step 4 :In this case, the binomial probability is \(P(x<60)\). To convert this to a normal distribution probability, we need to subtract 0.5 from 60 because the inequality is less than. So, the corresponding normal probability statement is \(P(x<59.5)\).

Step 5 :So, the final answer is: The normal probability statement that corresponds to the binomial probability statement \(P(x<60)\) is \(\boxed{C. P(x<59.5)}\).

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Source: https://solvelyapp.com/problems/RUhl2Prweu/

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