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## Question:

The graph below shows three different normal distributions.

Which statement must be true?

Each distribution has a different mean and the same standard deviation.

Each distribution has a different mean and a different standard deviation.

Each distribution has the same mean and the same standard deviation.

Each distribution has the same mean and a different standard deviation.

## Answer:

The graph below shows three different normal distributions.

Which statement must be true?

**Answer: **The correct option will be **“Each distribution has the same mean and a different standard deviation.”**

The spread in the given normal curves is due to different standard deviation. The mean for all the three curves lies at the center of the curve.

Therefore,** **each distribution has the same mean and a different standard deviation.

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