Let z be a standard normal random variable with mean ? = 0 and standard deviation ? = 1. Use Table 3 in Appendix I to find the probability. (Round your answer to four decimal places.)   Between −1.41 and 0.62

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Let z be a standard normal random variable with mean ? = 0 and standard deviation ? = 1. Use Table 3 in Appendix I to find the probability. (Round your answer to four decimal places.)
 
Between −1.41 and 0.62
### Table 3: Areas under the Normal Curve

This table provides the cumulative area under the standard normal distribution curve, corresponding to specific z-scores. It is a reference for determining the probability that a normally distributed random variable will fall within a particular range.

#### Understanding the Table

- **Z-Scores (z):** The leftmost column lists z-scores ranging from -3.4 to 3.4 in increments of 0.1.
- **Columns (.00 to .09):** Each row is followed by 10 columns representing additional increments from .00 to .09.

#### How to Use the Table

1. **Locate the Z-Score:** To find the area under the curve for a specific z-score, first locate the z-score in the leftmost column.
2. **Choose the Decimal Place:** Move across the row to the column that corresponds to the second decimal place of the z-score.
3. **Read the Area:** The intersection of the row and column gives the cumulative probability (area).

#### Example

For a z-score of -1.96:
- Locate -1.9 in the leftmost column.
- Move to the column under .06.
- The table entry is .0250, indicating that the area to the left of z = -1.96 is 0.0250.

#### Applications

This table is widely used in statistics for hypothesis testing, confidence interval calculations, and more. It provides a quick reference to assess probabilities for standard normal distribution events.
Transcribed Image Text:### Table 3: Areas under the Normal Curve This table provides the cumulative area under the standard normal distribution curve, corresponding to specific z-scores. It is a reference for determining the probability that a normally distributed random variable will fall within a particular range. #### Understanding the Table - **Z-Scores (z):** The leftmost column lists z-scores ranging from -3.4 to 3.4 in increments of 0.1. - **Columns (.00 to .09):** Each row is followed by 10 columns representing additional increments from .00 to .09. #### How to Use the Table 1. **Locate the Z-Score:** To find the area under the curve for a specific z-score, first locate the z-score in the leftmost column. 2. **Choose the Decimal Place:** Move across the row to the column that corresponds to the second decimal place of the z-score. 3. **Read the Area:** The intersection of the row and column gives the cumulative probability (area). #### Example For a z-score of -1.96: - Locate -1.9 in the leftmost column. - Move to the column under .06. - The table entry is .0250, indicating that the area to the left of z = -1.96 is 0.0250. #### Applications This table is widely used in statistics for hypothesis testing, confidence interval calculations, and more. It provides a quick reference to assess probabilities for standard normal distribution events.
This image displays a continuation of Table 3, which is typically a standard normal distribution table or Z-table used in statistics. This type of table provides the cumulative area (probability) from the left up to a specific Z-value in a standard normal distribution (mean of 0, standard deviation of 1).

**Explanation of the Table:**

- **Columns and Rows:**
  - The leftmost column represents the Z-value up to the first decimal point (e.g., 0.0, 0.1, 1.0, 2.5).
  - The topmost row represents the second decimal place of the Z-value (e.g., .00, .01, .02).

- **Finding a Probability:**
  - To find the cumulative probability for a given Z-value, combine the row and column values. For example, for Z = 1.23, locate the row for 1.2 and the column for .03 and find the value at their intersection, which is 0.8907.

- **Table Values:**
  - The values in the table are cumulative probabilities, indicating the area under the standard normal curve to the left of a given Z-value.

This table helps in statistical calculations, particularly in hypothesis testing and confidence interval estimation, by allowing users to find probabilities associated with specific Z-values.
Transcribed Image Text:This image displays a continuation of Table 3, which is typically a standard normal distribution table or Z-table used in statistics. This type of table provides the cumulative area (probability) from the left up to a specific Z-value in a standard normal distribution (mean of 0, standard deviation of 1). **Explanation of the Table:** - **Columns and Rows:** - The leftmost column represents the Z-value up to the first decimal point (e.g., 0.0, 0.1, 1.0, 2.5). - The topmost row represents the second decimal place of the Z-value (e.g., .00, .01, .02). - **Finding a Probability:** - To find the cumulative probability for a given Z-value, combine the row and column values. For example, for Z = 1.23, locate the row for 1.2 and the column for .03 and find the value at their intersection, which is 0.8907. - **Table Values:** - The values in the table are cumulative probabilities, indicating the area under the standard normal curve to the left of a given Z-value. This table helps in statistical calculations, particularly in hypothesis testing and confidence interval estimation, by allowing users to find probabilities associated with specific Z-values.
Expert Solution
Step 1: Introducing the given information

We have given that

Mean(mu right parenthesis = 0

Standard deviations (sigma) = 1

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