Review_Normal Distribution

What is the total area under the normal curve?

• 100

• 5

• 25

• 1

The normal curve is a bell-shaped probability distribution.

• TRUE

• FALSE

Which of the following properties of Normal Probability Distribution is FALSE?

• The tails of the curve flatten out indefinitely across the horizontal axis.

• The distribution curve is bell-shaped.

• The curve is symmetrical about its center.

• The mean, median, and mode coincide at the center.

What is the area under a normal curve within 2 standard deviations?

• 93%

• 64%

• 99.7%

• 95.44%

How many standard deviations are there in each inflection point?

• 0

• 1

• 2

• 3

What is another name for Normal Distribution?

• Bernoulli's Distribution

• Gaussian Distribution

• Poisson Distribution

• Probability Distribution

The graph of a normal distribution is symmetrical about the ______.

• mean

• standard deviation

• mean and standard deviation

• none of the above

The normal curve is asymptotic to the x-axis.

• True

• False

In a standard normal distribution, the values of the mean, mode and median are equal.

• True

• False

• Sometimes true, sometimes false

• none of these

What do you call the 68-95-99.7% Rule?

• Absolute Rule

• Empirical Rule

• Power Rule

• Percentage Rule