Questions: Determine the total area under the normal curve to the right of z = 2.
(Round to four decimal places as needed.)
Transcript text: Determine the total area under the normal curve to the right of z = 2.
(Round to four decimal places as needed.)
Solution
Step 1: Define the Problem
We need to determine the total area under the normal curve to the right of \( z = 2 \). This can be expressed mathematically as \( P(Z > 2) \).
Step 2: Use the Cumulative Distribution Function
The probability \( P(Z > 2) \) can be calculated using the cumulative distribution function \( \Phi(z) \):
\[
P(Z > 2) = 1 - \Phi(2)
\]
However, since we are interested in the area to the right, we can also express it as:
\[
P(Z > 2) = \Phi(\infty) - \Phi(2)
\]
Step 3: Calculate the Values
From the output, we have:
\( \Phi(\infty) = 1 \)
\( \Phi(2) \approx 0.9772 \)
Thus, we can compute:
\[
P(Z > 2) = 1 - 0.9772 = 0.0228
\]
Step 4: Conclusion
The total area under the normal curve to the right of \( z = 2 \) is:
\[
\boxed{0.0228}
\]