Statistics Target 3: Distributions of Data

True or False? If a random sample is chosen from a population that has a large cluster of points at the maximum, the sample is LIKELY to have at least one element near the maximum.

• True, because the dot plot looks like a mountain.

• True, because since there are many elements at the maximum, you have a better chance of choosing one of those elements if you do it randomly.

• False, because it's random, so you don't know what you might get.

• False, because there are still many points at the other side of the distribution, so it's a pretty even chance.

Tags

CCSS.6.SP.A.2

Which of the following is the most accurate description of the data distribution's shape?

• Skewed left with with a cluster between 6 and 8. Peak is 7.

• Skewed right with a cluster between 6 and 8. Peak is 6.

• Skewed left with a cluster at 6 and 7. Peak is 7

• Skewed right with a cluster at 6 and 7. Peak is 7.

Which of the following is the most accurate description of the data distributions center and spread?

• Median of 5 and a range of 4.

• Median of 6 and a range of 10.

• Median of 5 and a range of 10.

• Median of 6 and a range of 3.

Tags

CCSS.6.SP.A.2

What percent of students in Class B made above a 73 on the test?

• 25%

• 50%

• 75%

• There is not enough information to answer this question.

Tags

CCSS.7.SP.B.4

What is the difference in the Interquartile Ranges of Class A and Class B?

• 14

• 9

• 4

• 5

Which of the following is TRUE about the test scores of Class A and Class B?

• 50% of students in Class A made above an 80 on the test.

• The range of scores in Class B was 30 points.

• 25% of students in Class A made less than a 77 on the test.

• Overall, Class B performed better on the test with 50% of students scoring above 80 and 25% of students scoring above an 87.

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1