Grade 7 McGraw Hill Glencoe - Answer Keys Answer keys Chapter 9: Probability; Lesson 4: Simulations

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Grade 7 McGraw Hill Glencoe - Answer Keys

Chapter 9: Probability; Lesson 4: Simulations

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Question 6 (request help)
Model with Mathematics Suppose a mouse is placed in the maze below. If each decision about direction is made at random, create a simulation to determine the probability that the mouse will find its way out before coming to a dead end or going out the In opening.
Type below:

Question 7 (request help)
Model with Mathematics Describe a situation that could be represented by a simulation. What objects could be used in your simulation?
Type below:

Question 8 (request help)
Persevere with Problems A simulation uses cards numbered 0 through 9 to generate five 2-digit numbers. A card is selected for the tens digit and not replaced. Then a card for the ones digit is drawn and not replaced. The process is repeated until all the cards are used. If the simulation is performed 10 times, about how many times could you expect a 2-digit number to begin with a 5? Explain.

times

Question 9 (request help)
Justify Conclusions Determine whether the following statement is sometimes, always, or never true. Justify your answer.

A spinner can be used to model equally likely outcomes.

true

Question 10 (request help)
Donté has homework in language arts and science. He randomly picks up one of the 2 homework folders. Which simulation could be used to model the selection of one of the folders?
- rolling a number cube
- tossing a coin
- spinning a spinner with 3 equal sections
- spinning a spinner with 4 equal sections