Intro Standard Deviation

This data is normally distributed. What percent of the data is in the shaded region?

• 68%

• 95%

• 99.8%

• 50%

This data is normally distributed. What percent of the data is in the shaded region?

• 68%

• 95%

• 99.8%

• 50%

This data is normally distributed.  What percent of the data is in the shaded region?

• 5%

• 95%

• 2.5%

• 50%

This data is normally distributed. What percent of the data is in the shaded region?

• 99.8%

• 0.2%

• 0.15%

• 50%

What does the standard deviation tell us about the data set?

• How spread out the numbers are

• How much each number in the data set increases by

• How much each number in the data set decreases by

Without doing any calculations, which of the distributions shown (A, B, or C) has the largest standard deviation?

• A

• B

• C

When comparing data sets, a higher Standard Deviation indicates...

• More consistency and less variability

• Less consistency and less variability

• More consistency and more variability

• Less consistency and more variability

List each set of data by color from the lowest standard deviation to the highest standard deviation.

• blue, green, pink, red

• red, pink, green, blue

• pink, green, red, blue

• blue, green, red, pink

What is the standard deviation on this Normal Curve?

• 6

• 12

• 34

• 18

Which curve has the smallest standard deviation?

• A

• B

• C