Ap Statistics Chapter 4

Which of the following statements is not true of the correlation r between the lengths in inches and weights in pounds of a sample of brook trout?

• r must take a value between -1 and 1.
• r is measured in inches.
• If longer trout tend to also be heavier, then r>0.
• r would not change if we measured the lengths of the trout in centimeters instead of inches.

Tags

CCSS.HSS.ID.C.8

CCSS.HSS.ID.C.9

In a two way table of counts, the distribution of values of one of the categorical variables among all individuals described by the table. Totals found in the margins.

• Contingency Table
• Frequency Table
• Marginal Distribution
• Distribution

Tags

CCSS.HSS.ID.B.5

CCSS.HSS.CP.A.4

When averages are taken across different groups, they can appear to contradict the overall averages

• Independence
• Area Principle
• Categorical Data Condition
• Simpson's Paradox

What percent of students that chose the ability to fly were from the U.S.? 

• 55%
• 21%
• 45%
• 11%

Tags

CCSS.8.SP.A.4

A sample of high school students from the US and the UK were asked to choose their favorite superpower.  What percent of students from the UK selected "Invisibility" for their superpower preference?

• 15%
• 30%
• 55%
• 37%

Tags

CCSS.8.SP.A.4

What percent of people who lived were third class passengers?

• 32.8%
• 34.2%
• 24.9%
• 62.5%

Tags

CCSS.HSS.ID.B.5

CCSS.HSS.IC.B.4

Find the marginal distribution of people who believe they have almost no chance.

• 4.0%
• 7.5%
• 30%
• 45%

Tags

CCSS.HSS.ID.B.5

Find the marginal distribution of females.

• 46.2%
• 49.0%
• 50.2%
• 53.8%

Tags

CCSS.8.SP.A.4

What is the conditional distribution of individuals with high blood pressure for the "Under 30" age group? 

• 23.5%
• 15.6%
• 27.6%
• 49%

Tags

CCSS.HSS.ID.B.5

CCSS.HSS.CP.A.4

CCSS.HSS.CP.B.6

What is the conditional distribution of sports for the men? 

• 32%
• 62.5%
• 20%
• 50%

Tags

CCSS.8.SP.A.4