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To solve this problem, we need to find the z-score that corresponds to the area of 0.1814 under the standard normal distribution curve to the left of a certain z-value.

The area to the left of the z-score (0.1814) can be used to find the corresponding z-score using a z-table or a standard normal distribution calculator.

### Steps:
1. Look up the cumulative area of 0.1814 in a z-table (which shows the cumulative probability for each z-score).
2. You will find that the z-score corresponding to a cumulative probability of 0.1814 is approximately **-0.91**.

Thus, the indicated z-score is approximately **-0.91**.

Let me know if you need more details or have any other questions.

Here are some related questions:
1. What does a z-score represent in a standard normal distribution?
2. How is the cumulative area under the curve related to the probability?
3. What is the relationship between the z-score and standard deviations from the mean?
4. How can z-scores be used in hypothesis testing?
5. How do we use z-scores to compare different data sets?

**Tip:** A z-score tells you how many standard deviations a value is from the mean. Negative z-scores indicate values below the mean, while positive z-scores indicate values above the mean.

Find the indicated z-score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. The area to the left of the z-score is 0.1814.

Learn how to find the z-score corresponding to a cumulative area of 0.1814 under the standard normal distribution curve. This problem covers key statistical concepts, including the z-score formula and the properties of the standard normal distribution. Suitable for high school students.

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