b. The area between -z and z is 0.9030. c. The area between -z and z is 0.2052.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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How do I find b and c?

**Problem Statement: Finding the Z-Score**

Given that \( z \) is a standard normal random variable, find \( z \) for each situation (to 2 decimals). Enter negative values as negative numbers.

**a.** The area to the left of \( z \) is **0.2119**.  
\[ \boxed{-0.8} \]

**b.** The area between \(-z\) and \( z \) is **0.9030**.  
\[ \boxed{} \]

**c.** The area between \(-z\) and \( z \) is **0.2052**.  
\[ \boxed{} \]

**d.** The area to the left of \( z \) is **0.9948**.  
\[ \boxed{2.56} \]

**e.** The area to the right of \( z \) is **0.6915**.  
\[ \boxed{-0.5} \]

*Note: The areas are given in terms of probabilities, which correspond to the cumulative distribution function (CDF) values for the standard normal distribution.*
Transcribed Image Text:**Problem Statement: Finding the Z-Score** Given that \( z \) is a standard normal random variable, find \( z \) for each situation (to 2 decimals). Enter negative values as negative numbers. **a.** The area to the left of \( z \) is **0.2119**. \[ \boxed{-0.8} \] **b.** The area between \(-z\) and \( z \) is **0.9030**. \[ \boxed{} \] **c.** The area between \(-z\) and \( z \) is **0.2052**. \[ \boxed{} \] **d.** The area to the left of \( z \) is **0.9948**. \[ \boxed{2.56} \] **e.** The area to the right of \( z \) is **0.6915**. \[ \boxed{-0.5} \] *Note: The areas are given in terms of probabilities, which correspond to the cumulative distribution function (CDF) values for the standard normal distribution.*
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