Open Up - Grade 7 - Mathematics - Unit 8 - Lesson 12

Suppose you are interested in learning about how much time seventh grade students at your school spend outdoors on a typical school day.Select all the samples that are a part of the population you are interested in.

• The 20 students in a seventh grade math class
• The first 20 students to arrive at school on a particular day.
• The seventh grade students participating in a science fair put on by the four middle schools in a school district.
• The 10 seventh graders on the school soccer team.
• The students on the school debate team.

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For each sample given, list two possible populations they could belong to.Sample: The prices for apples at two stores near your house.

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For each sample given, list two possible populations they could belong to.Sample: The days of the week the students in your math class ordered food during the past week.

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For each sample given, list two possible populations they could belong to.Sample: The daily high temperatures for the capital cities of all 50 U.S. states over the past year.

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A school’s art club holds a bake sale on Fridays to raise money for art supplies. Here are the number of cookies they sold each week in the fall and in the spring:. The MAD for the fall data is 2.8 cookies. The MAD for the spring data is 2.6 cookies. Express the difference in means as a multiple of the larger MAD.(round to the nearet hundreth)

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A school’s art club holds a bake sale on Fridays to raise money for art supplies. Here are the number of cookies they sold each week in the fall and in the spring:. Based on this data, do you think that sales were generally higher in the spring than in the fall?Explain.

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A school is selling candles for a fundraiser. They keep 40% of the total sales as their commission, and they pay the rest to the candle company. How much money must the school pay to the candle company?(Round to the nearest cent)

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