CW Problems for Chapter 1 Notes

Students were asked to rate their instructor's preparation for the class as being excellent, good, or needs improvement. What is the type of variable?

• Quantitative

• Categorical

Tags

CCSS.HSS.ID.B.5

Prospective subjects for a study had their blood pressures recorded. What is the type of variable of interest and how would it be summarized?

• Categorical with a mean

• Quantitative with a mean

• Categorical with a proportion

• Quantitative with a proportion

Tags

CCSS.HSS.IC.B.4

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

Based on a survey of a few thousand people, a newspaper reporter wants to draw conclusions about how a country's citizens in general feel about the US trade conflicts with China. At this point, is the reporter mainly concerned with (from the 4 stages of Statistics):

• Data Production

• Displaying and Summarizing Data

• Probability

• Performing Inference on a Population

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

A New York Times reporter decides to convey information about American divorce rates by including a map of the United States. He shades each state from light to dark in color to indicate how low/high the rate actually is. At this point, is the reporter mainly concerned with (from the 4 stages of Statistics):

• Data Production

• Displaying and/or summarizing data

• Probability

• Statistical Inference

Tags

CCSS.HSS.ID.A.1

If a student was going to research the amount of time their classmates spent in the sun this past summer, how would this variable be classified and how would it be summarized?

• Categorical with a mean

• Categorical with a proportion

• Quantitative with a mean

• Quantitative with a proportion

Tags

CCSS.HSS.IC.B.4

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

If Mr. Burger asked a 30 random students from WMHS to participate in a survey, would these selected students be considered:

• Sample

• Population

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

For the following scenario, tell which of the five variable situational relationships is involved:

The Times studied 17 different appliances in US homes in 2018 and determined that 96% of homes had a microwave and washing machines were found in 78% of homes.

• C

• Q

• C --> Q

• C --> C

• Q --> Q

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

For the following scenario, tell which of the five variable situational relationships is involved:

The Times conducted a study that tried to relate the year of the appliance owned to its corresponding percentage. In 1988, 66% of US homes had a microwave, while in 2018, 96% of homes had a microwave.

Also, In 1988, 34% of US homes had a washing machine, while in 2018, 78% of homes had one.

• C

• Q

• C --> Q

• C --> C

• Q --> Q

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

For the following scenario, tell which of the five variable situational relationships is involved:

The Times conducted a study that determined that in 2018, there were an average of 3.5 television sets per home.

• C

• Q

• C --> Q

• C --> C

• Q --> Q

Tags

CCSS.HSF-LE.A.1B