Quiz-The Normal Random Variable

What is the term used to describe a distribution where most scores tend to be closer to the mean?

• Poisson distribution

• exponential distribution
• bimodal distribution

• normal distribution

What does the symbol μ represent in the context of the normal distribution?

• mode
• mean
• standard deviation
• median

What does the symbol σ represent in the context of the normal distribution?

• Standard deviation
• Variance
• Median
• Mean

Which of the following is an example of a standard normal distribution?

• Uniform distribution with mean 0 and standard deviation 1
• Normal distribution with mean 0 and standard deviation 1
• Exponential distribution with mean 0 and standard deviation 1
• Normal distribution with mean 2 and standard deviation 1

How do you denote "sigma"?

• ς
• σ
• Σ

How will do you write "mu"?

• μ

• mew

• mu
• m

Sample space can be denote as

• x

• X

• Y

• Z

Natural number denotes as

• Negative integers starting from -1
• e

• Rational numbers
• Complex numbers

What is variance?

• Variance is a measure of the central tendency of a dataset
• Variance is the range of values in a dataset
• a measure of how spread out a set of data points are from the mean.

• Variance is the same as standard deviation

What is normal curve?

• A normal curve is a zigzag pattern that represents the distribution of data in a symmetrical manner around the mean.

• A normal curve is a U-shaped curve that represents the distribution of data in a symmetrical manner around the mean.

• A normal curve is a bell-shaped curve that represents the distribution of data in a symmetrical manner around the mean.
• A normal curve is a straight line that represents the distribution of data in a symmetrical manner around the mean.