Empirical Rule 11/8

On the math portion of the SAT, scores are roughly normal, with a mean of 500 and a standard deviation of 100. What percent of scores are above 400?

• 68%

• 81.5%

• 84%

• 99.7%

Tags

CCSS.HSS.ID.A.4

On the math portion of the SAT, scores are roughly normal, with a mean of 500 and a standard deviation of 100. What percent of scores are above 500?

• 50%

• 68%

• 95%

• 99.7%

Tags

CCSS.HSS.ID.A.4

On the math portion of the SAT the scores are roughly normal with a mean of 500 and a standard deviation of 100. What percent of scores are below 700?

• 99.7%

• 95%

• 97.5%

• 68%

Tags

CCSS.HSS.ID.A.4

On the math portion of the SAT the scores are roughly normal with a mean of 500 and a standard deviation of 100. Between what two values do approximately 95% of scores lie?

• 500-600

• 200-800

• 300-700

• 500-800

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.MD.A.3

On the math portion of the SAT the scores are roughly normal with a mean of 500 and a standard deviation of 100. What is the score of the person whose score is higher than 84% of the people?

• 500

• 600

• 200

• 300

Tags

CCSS.HSS.ID.A.4

Use this drawing for questions #7-11. Given an approximately normal distribution with a mean of 175 and a standard deviation of 37. Draw a normal curve and label 1, 2, and 3 standard deviations on both sides.

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.1

What percent of values are within the interval 138-212?

(a)  

Tags

CCSS.HSS.ID.A.4

What percent of values are within the interval 101-249?

(a)  

Tags

CCSS.7.RP.A.3

What percent of values are in the interval 64-286?

(a)  

Tags

CCSS.HSS.ID.A.4

What percent of values lie outside the interval 138-212?

(a)  

Tags

CCSS.HSS.ID.A.4