Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 9: Probability; Lesson 3: Probability of Compound Events


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Extra Practice

  • Question 11 (request help)

    Three-course dinners can be made from the menu shown. Find the sample space for a dinner consisting of an appetizer, entrée, and dessert.

  • Question 12 (request help)

    Mr. and Mrs. Romero are expecting triplets. Suppose the chance of each child being a boy is 50% and of being a girl is 50%. Find the probability of each event.

    a. P(all three children will be boys)

  • Question 12 (request help)

    b. P(at least one boy and one girl)

  • P(at least one boy and one girl) =
  • Question 12 (request help)

    c. P(two boys and one girl)

  • P(two boys and one girl)) =
  • Question 12 (request help)

    d. P(at least two girls)

  • P(at least two girls)) =

Copy and Solve For Exercises 13 and 14, show your work on a separate piece of paper.

  • Question 13 (request help)

    The University of Oregon’s football team has many different uniforms. The coach can choose from four colors of jerseys and pants: green, yellow, white, and black. There are three helmet options: green, white, and yellow. Also, there are the same four colors of socks and two colors of shoes, black and yellow.

    a. How many jersey/pant combinations are there?

  •    jersey/pant combinations
  • Question 13 (request help)

    b. If the coach picks a jersey/pant combination at random, what is the probability he will pick a yellow jersey with green pants?

  • P(YG) =
  • Question 13 (request help)

    c. Use a tree diagram to find all of the possible shoe and sock combinations.

  • Type below:
  • Question 14 (request help)

    Use Math Tools Use the Internet or another source to find the top five best-selling animated movies. Then create a list of the possibilities for choosing a movie and  choosing a wide-screen or full-screen version.

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