CCSS.Math.Content.HSS.IC.A.1

At a middle school, the 7th graders will conduct a survey for where to go on a field trip. Which method will result in the least biased decision?

• to randomly ask 8th grade students who went on a field trip last year
• to randomly choose some 7th grade students to select a location
• to ask all 7th grade teachers and administrators for a location
• to ask the student council to choose a location

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CCSS.Math.Content.HSS.IC.A.1

Marcos wants to find out how many students at his school like to go to the movies. Which survey method is likely to produce a representative survey?

• Ask the boys in the boys locker room.
• Ask the 25 students in his homeroom class.
• Ask students coming out of a movie theater.
• Ask half of the 34 students on the soccer team.

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CCSS.Math.Content.HSS.IC.A.1

To study the amount of time students spend doing homework each day, use a random number generator to select 25 students from the student enrollment database to survey.

• Convenience Sample
• Simple Random Sample
• Stratified Random Sample
• Interval Sample

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CCSS.Math.Content.HSS.IC.A.1

In a recent survey of 1503 adults in the United States, 53% said they use both a landline and a cell phone,

• parameter
• statistic

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CCSS.Math.Content.HSS.IC.A.1

Determine the type of sampling used in the following scenario: Farmer Joe separates his apple tree farm into 10 regions.  He counts the number of apples produced in just one of the regions and uses that estimate to predict the number of apples produced on the whole farm.  This is _______ sampling.

• Simple
• Cluster
• Stratified
• Systematic

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CCSS.Math.Content.HSS.IC.A.1

Given the interval (1.2, 1.8), what is the point estimate and the margin of error? 

• 1.5, 0.6
• 1.5, 0.3
• 1.2, 0.3
• 1.2, 0.6

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CCSS.Math.Content.HSS.IC.A.1

The Large Counts condition is met by using what equation? 

• n(p-hat)
• n >/ 30
• n > 10
• n(1-p-hat)

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CCSS.Math.Content.HSS.IC.A.1

A group of people are surveyed about the number of books they read each month, and the results are graphed in the pie chart. If the sample accurately represents the 420,000 people in the city of Omaha, how many people in Omaha can we expect to read 3 or more books per month?

• 84,000

• 105,000

• 189,000

• 218,000

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CCSS.Math.Content.HSS.IC.A.1

Identify the Population:

Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource its teachers feel is the most effective.

• 230 Teachers

• All Wicomico County Teachers

• Students

• Wicomico County Public Schools

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CCSS.Math.Content.HSS.IC.A.1

A recent survey found that out of 400 random American adults, 89% pay their bills on time. The margin of error in this survey was 2%. What is the interval of values in which the truth is likely found?

• 89% - 91%

• 87% - 89%

• 87% - 91%

• 388 - 402

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CCSS.Math.Content.HSS.IC.A.1