The Normal Distribution (Normal Curve)

What is another name for normal distribution?

• Gaussian distribution

• Poisson distribution

• Bernoulli’s distribution

• Probability distribution

What is the total area in the distribution under the curve?

• 0

• 1

• 2

• 3

What marks the change in the curve’s concavity?

• curve

• inflection points

• mean

• standard deviation

It characterize the spread or range of a normal distribution/data set?

• Sample Mean

• Population Mean

• Standard Deviation

• Sample Size

Which value is found at the center of the normal curve?

• Mean

• Median

• Mode

• All of the Above

What is the best phrase that will describe case 2?

• REVERT THE SIGN

• AS IS

• SUBTRACT THE AREA OF EACH Z SCORES

• ALL OF THE ABOVE

Which refers to the mean of a population?

• Standard Deviation

• MU

• Statistic

• Parameter

The graph of a Normal distribution is _________ to the x axis.

What case number can be applied to find P ( X > 24)?

• Case 1

• Case 2

• Case 3

• Case 4?

Given the MU = 50 and SD = 12,
What is P ( X < 70 )?

• 95.15%

• 94.84%

• 95.35%

• 95.25%