To identify which curve represents the standard normal (z) distribution, we need to recall the key characteristics of the standard normal distribution:

• The standard normal distribution is symmetric and has a mean of 0 and a standard deviation of 1.
• It has a bell-shaped curve and is centered at zero.

Looking at the image you provided, I'll analyze the curves. Please give me a moment. PIL import Image

Open the image to inspect the curves

image_path = "/mnt/data/1740622450826s8q27ni8.jpg" image = Image.open(image_path)

image.show()I have opened the image, but based on the visual, I cannot directly interpret the details of the curves, such as whether they represent the standard normal distribution. However, you can look at the labels near the curves, which should indicate which one corresponds to the standard normal distribution.

The standard normal distribution is typically represented by a solid curve in many contexts, but to be certain, you should check the exact labeling of each curve in the image. Would you like help in interpreting the labels or any further details?