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The video provides a brief introduction to the concept of 'Normal', explaining its basic meaning and context.

What is the primary characteristic of a normal distribution?

• It is skewed to the right.

• It is skewed to the left.

• It is symmetrical.

• It has multiple peaks.

Which of the following is true about the mean, median, and mode in a normal distribution?

• They are all different.

• Mean is greater than median.

• They are all equal.

• Mean is less than mode.

In a normal distribution, what percentage of data falls within one standard deviation of the mean?

• 95%

• 50%

• 68%

• 99.7%

Which of the following is an example of a real-world phenomenon that follows a normal distribution?

• The number of cars passing through a toll booth.

• The height of adult humans.

• The amount of rainfall in a desert.

• The number of students in a classroom.

Why is the normal distribution important in statistics?

• It is the basis for many statistical tests and methods.

• It is used to calculate probabilities for non-random events.

• It helps in understanding skewed data.

• It is only applicable to small data sets.