Illustrative Mathematics - Geometry - Unit 8 - Lesson 7
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11 Questions
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The Bulldogs have won approximately 67% of their 30 baseball games this season. The Bulldogs won 9 of the 10 games they played when Diego was the starting pitcher. Are the events “the Bulldogs win the game” and “the Bulldogs win the game when Diego is the starting pitcher” dependent or independent events?
Explain your reasoning.
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Describe two events that are independent. Explain your reasoning.
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The table displays the number and type of tickets bought for a baseball tournament held on a Saturday and Sunday.
The addition rule states that given events A and B, P(A or B) = P(A) + P(B) - P(A and B). Show how to apply the addition rule for the events “a child ticket is bought for a baseball tournament” and “the day of the tournament is Sunday.”
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A researcher surveys 200 randomly selected college students to determine the number of education majors and mathematics majors. 16% of the students surveyed are education majors and 6% of the students surveyed are mathematics majors. 2% of the students are both education majors and mathematics majors.
What percentage of the students surveyed are education majors or mathematics majors?
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100 students were asked two survey questions:
Do you have a garden?
Are you a gamer?
Their responses are summarized in the Venn diagram.
How many students surveyed have a garden?
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The table shows the preferences of 40 students surveyed about the design of a new t-shirt for students who are graduating this year.
What is the probability that a student surveyed, selected at random, preferred a pink t-shirt with long sleeves?
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Write a formula that could be used to find the area of this sector.
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This lesson is from Illustrative Mathematics. Geometry, Unit 8, Lesson 7. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/2/8/7/index.html ; accessed 29/July/2021.
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