Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 9: Probability; Lesson 2: Theoretical and Experimental Probability


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Independent Practice

  • Question 1 (request help)

    A number cube is rolled 20 times and lands on 1 two times and on 5 four times. Find each experimental probability. Then compare the experimental probability to the theoretical probability.

    a. landing on 5
  • Experimental probability =
  • Question 1 (request help)

     

    b. not landing on 1
  • Experimental probability =
  • Question 2 (request help)

    The spinner below is spun 12 times. It lands on blue 1 time.

    a. What is the experimental probability of the spinner landing on blue?
  • P(blue) =
  • Question 2 (request help)

    b. Compare the experimental and theoretical probabilities of the spinner landing on blue. If the probabilities are not close, explain a possible reason for the discrepancy.
  •    
  • Question 3 (request help)

    Use the graph of a survey of 70 zoo visitors who were asked to name their favorite animal exhibit.

    a. Suppose 540 people visit the zoo. Predict how many people will choose the monkey.
  • \(\approx\)   
  • Question 3 (request help)

    b. Suppose 720 people visit the zoo. Predict how many people will choose the penguin exhibit as their favorite.
  • \(\approx\)   
  • Question 4 (request help)

    Make a Conjecture Cross out the part of the concept circle that does not belong. Then describe the relationship among the remaining parts.
  • Type below:

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