Simulations

The questions on a multiple choice test each have 6 answer choices. Which model can be used to simulate randomly selecting the correct answer on a 20 question multiple choice test?

• rolling a six-sided number cube 6 times
• rolling a six-sided number cube 20 times
• spinning a spinner with 4 equal sized sections 4 times
• choosing 1 marble in a bag of 20 different colored marbles

Tags

CCSS.7.SP.C.8

CCSS.7.SP.C.7

Which is the best way to represent answering 25 multiple-choice questions with 4 choices for each answer?

• spin a spinner with four sections 25 times
• roll a die 25 times
• flip a coin 25 times
• roll a die 4 times

Tags

CCSS.7.SP.C.8

CCSS.7.SP.C.7

CCSS.7.SP.C.5

A certain brand of TV has a 50% chance of being defective. Which model could be used to determine the probability that when two TVs are chosen, they will both be defective?

• spin a spinner with 4 equal sections
• roll a die twice
• flip a coin twice
• flip a coin, then roll a die

Tags

CCSS.7.SP.C.8

CCSS.7.SP.C.7

CCSS.7.SP.C.5

Layla has 2 pairs of shoes and 6 pairs of socks. If each pair of socks and each pair of shoes is equally like to be chosen, which is the best simulation to show the probability of choosing any given combination?

• roll a die and flip a coin
• roll a die two times
• flip a coin 6 times
• flip a coin 2 times

Tags

CCSS.7.SP.C.8

CCSS.7.SP.C.7

CCSS.7.SP.C.5

Samuel has 5 different colors of pens and 2 different colors of paper. Which model could be used to show how many different choices he has?

• spin a spinner with 5 sections, then flip a coin
• roll a die 5 times
• flip a coin 5 times
• roll a die, then flip a coin 5 times

Tags

CCSS.7.SP.C.8

CCSS.7.SP.C.7

 A teacher wants to randomly choose 4 students to answer a series of questions. If there are 20 students in the classroom, describe a model that the teacher could use to simulate choosing these 4 students. 

• rolling a number cube 20 times
• spinning a spinner with 20 sections 4 times
• flipping a coin 20 times
• rolling a number cube and flipping a coin 20 times

Tags

CCSS.7.SP.C.8

CCSS.7.SP.A.1

CCSS.7.SP.A.2

How could you simulate randomly choosing a place for lunch out of 6 different restaurants?

• flip a coin
• roll a die
• spin a 4-sided spinner
• flip 2 coins

Tags

CCSS.7.SP.C.8

CCSS.7.SP.C.7

CCSS.7.SP.C.5

Why do we use simulations?

• To create virtual reality games.

• So people can learn something.

• To test an idea in a controlled environment.

• All of the above.

What is a simulation and why are they used?

• A simulation is a giant model in motion for a test.

• A simulation uses one or more models to imitate how those models might function in a real life situation.

• A simulation tests a hypothesis with 100% accuracy.

Willy runs a small company with 10 employees. He decides to pick a simple random sample of three employees to go on a business trip. He numbers them 0-9 and uses the random digit table below to select the sample. Which employees are in the sample? 
67197   28310   90341

• 67, 19, 72, 83, 10
• 67, 19, 72
• 6, 7, 1, 9
• 6, 7, 1