Questions: Find the Z-score such that the area under the standard normal curve to the left is 0.52. Click the icon to view a table of areas under the normal curve. The Z-score such that the area under the curve to the left is 0.52. (Round to two decimal places as needed.)

Find the Z-score such that the area under the standard normal curve to the left is 0.52. Click the icon to view a table of areas under the normal curve. The Z-score such that the area under the curve to the left is 0.52. (Round to two decimal places as needed.)
Transcript text: Find the Z-score such that the area under the standard normal curve to the left is 0.52 . Click the icon to view a table of areas under the normal curve. $\square$ is the Z-score such that the area under the curve to the left is 0.52 . (Round to two decimal places as needed.)
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Solution

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Solution Steps

Step 1: Understanding the Problem

We need to find the Z-score such that the area under the standard normal curve to the left is 0.520.52. This means we are looking for a value zz such that:

P(Z<z)=0.52 P(Z < z) = 0.52

where ZZ is a standard normal random variable.

Step 2: Finding the Z-score

To find the Z-score corresponding to the cumulative probability of 0.520.52, we can use the inverse of the cumulative distribution function (CDF) for the standard normal distribution. This is denoted as:

z=Φ1(0.52) z = \Phi^{-1}(0.52)

Using statistical tables or computational methods, we find:

z0.05 z \approx 0.05

Step 3: Rounding the Result

The Z-score calculated is 0.050.05. Since the problem requires rounding to two decimal places, we have:

z0.05 z \approx 0.05

Final Answer

The Z-score such that the area under the curve to the left is 0.520.52 is

0.05 \boxed{0.05}

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