Select the question(s) which could be answered by collecting bivariate data. Select all that apply.

• How much does it typically cost to own a horse?

• Does the amount of fertilizer used impact the number of tomatoes a plant produces?

• What is the relationship between reaction time and age?

• What interest rate can I expect on a car loan?

In a study conducted at a high school, students' study times (in hours) and their corresponding test scores (out of 100) were recorded for one particular examination. The data is to be analyzed to understand the relationship between study time and test scores.

• Analyze the data to find the correlation between study time and test scores.

• Ignore the data and assume there is no relationship.

• Use the data to predict future test scores based on study time.

• Use the data to determine the average study time.

A hospital wants to compare the recovery rates of patients using a new dosage versus those using a standard treatment. What kind of data collection does this demonstrate?

• Sample survey

• Experiment

• Observational study

Tags

CCSS.HSS.IC.B.3

A social worker notices that many of the children he helps say they want to go to the playground during their sessions. He is curious if there is a relationship between age of children and time spent at playgrounds each week in his town. Identify the target population.

• Children in the town

• Adults in the town

• Elderly in the town

• Teenagers in the town

A social worker notices that many of the children he helps say they want to go to the playground during their sessions. He is curious if there is a relationship between age of children and time spent at playgrounds each week in his town.

Which method would be best to collect the relevant data?

• Observation

• Measurement

• Survey

• Acquire secondary data

________________ data is data that deals with two variables.

• Univariate

• Bivariate

• Categorical

• Quantitative

What type of relationship is shown?

• No correlation
• Nonlinear relationship that changes over different intervals
• Positive Correlation
• Negative correlation

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.HSS.IC.B.3

When a sample is representative of the larger population, selected at random, and is large enough to provide accurate data; well-balanced and neutral.

• Biased Sampling

• Unbiased Sampling

Which of the following is the best definition of a simple random sample?

• A sample created using random numbers

• A sample where the simplest method of sampling is used

• A sample which is representative of the population

• A sample where each member of the population has an equal chance of being selected