Normal Distribution - Empirical Rule

1.  Which best describes the shaded part of this normal distribution graph?  

• All data that is one or higher.
• All data that is one or more standard deviations above the mean.
• All data that is between 1 and 3.
• All data that is above the mean.

Tags

CCSS.HSS.ID.A.4

By the way, what is standard deviation?

• good question
• how standardly something deviates
• average distance that data points are from the average
• Idk but I should probably find out pretty soon

What percent of people are 3 standard deviations above the mean?

• .15

• 34

• 68

• 2.35

Tags

CCSS.HSS.ID.A.4

What percent of people are 2 standard deviations or more above the mean?

• 2.35

• 34

• 68

• 2.5

Tags

CCSS.HSS.ID.A.4

What percent of people within 1 standard deviation of the mean?

• 99.7

• 34

• 68

• 95

Tags

CCSS.HSS.ID.A.4

What percent of people within 2 standard deviations of the mean?

• 99.7

• 34

• 68

• 95

Tags

CCSS.HSS.ID.A.4

What percent of people within 3 standard deviations of the mean?

• 99.7

• 34

• 68

• 95

Tags

CCSS.HSS.ID.A.4

What percent of people outside of 3 standard deviations of the mean?

• 13

• .15

• 157

• .3

Tags

CCSS.HSS.ID.A.4

 
Which curve has the greater standard deviation?

• Red
• Black
• Blue

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

What shape is a normal distribution curve?

• Half curve
• Round curve
• Bell curve
• Square curve

Tags

CCSS.HSS.ID.A.4