About standard Normal curve all is true except
**Core Concept**
The standard Normal curve, also known as the z-distribution, is a probability distribution that describes the shape of a normal distribution with a mean of 0 and a standard deviation of 1. It is widely used in statistics and research to normalize and compare data from different populations.
**Why the Correct Answer is Right**
The standard Normal curve is symmetric around the mean (0), with 68.27% of the data falling within 1 standard deviation of the mean, 95.45% within 2 standard deviations, and 99.73% within 3 standard deviations. This makes it a useful tool for identifying outliers and understanding the distribution of data.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided, but if it were a statement about the standard Normal curve, it would be incorrect if it contradicted the above core concept.
**Option B:** This option is not provided, but if it were a statement about the standard Normal curve, it would be incorrect if it contradicted the above core concept.
**Option C:** This option is not provided, but if it were a statement about the standard Normal curve, it would be incorrect if it contradicted the above core concept.
**Option D:** This option is not provided, but if it were a statement about the standard Normal curve, it would be incorrect if it contradicted the above core concept.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that the standard Normal curve is a theoretical distribution and does not occur naturally in real-world data, which often displays skewness or other deviations from normality.
**Correct Answer:**