Simulation Experiment or Observational

Four groups of randomly selected people are assigned a different diet. After six months, the blood pressures of each group are compared.

• Observational Study

• Experiment

using a mathematical or physical model to reproduce the conditions of a study

• simulation

• survey

• randomization

• replication

person observes and measures characteristic without changing the conditions

• observational study

• experiment

• treatment

Uses a model to reproduce the conditions of a situation or process so that the model's outcomes closely match real-world outcomes

• Experiment

• Observational study

• Survey

• Simulation

A study where researchers deliberately impose treatment on the individuals.

• Experiment

• Observational Study

• Survey

• Census

A class of 20 students includes 14 seniors and 6 juniors. Each day, the teacher randomly selects an SRS of 4 students to present the answer to a homework question. Which of the following correctly describes one trial of a simulation to estimate the probability that all four chosen are juniors?

• Let 1 - 70 = senior and 71 - 100 = junior. Generate 4 random integers with replacement from 1 to 100 and count how many integers are between 71 and 100.

• Let 1 - 70 = senior and 71 - 100 = junior. Generate 4 random integers without replacement from 1 to 100 and count how many integers are between 71 and 100.

• Let 1 - 14 = senior and 15 - 20 = junior. Generate 4 random integers with replacement from 1 to 20 and count how many integers are between 15 and 20.

• Let 1 - 14 = senior and 15 - 20 = junior. Generate 4 random integers without replacement from 1 to 20 and count how many integers are between 15 and 20.

• Let 1 - 14 = senior and 15 - 20 = junior. Generate 6 random integers with replacement from 1 to 20 and count how many integers are between 15 and 20.

Imposes a treatment on individuals in order to collect data on their response to the treatment

• Experiment

• Observational study

• Survey

• Simulation

Measures variables without controlling the individuals or their environment

• Experiment

• Observational study

• Survey

• Simulation

What data collection method was used?

• Observational Study

• Experiment

• Survey

• Simulation

Elise gave each member of the class a random cookie, some from recipe A and some from recipe B. Then she observed which students returned for a second cookie. What data collection method was used?

• Observational Study

• Experiment

• Survey

• Simulation