CCSS.Math.Content.7.SP.A.1

The Candlelit-Dinner Candle Store surveys its Monday customers to find out their opinion on a new scented candle.  Is this biased or unbiased?

• Biased
• Unbiased

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CCSS.Math.Content.7.SP.A.1

The list below shows how many students attended a school dance in each of the past six years.
120, 132, 100, 150, 132, 140
Which measure of data should NOT be used to predict the number of students that will attend the dance this year?

• Mean
• Median
• Mode
• Range

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CCSS.Math.Content.7.SP.A.1

The choir director in a high school wants to know how the students in the school feel about singing. If the director selects 100 girls and 100 boys to complete a survey, which method will result in a biased sample?

• The students will be selected from the choir
• The students will be selected randomly throughout the school
• The students will be selected on Wednesday afternoon before the choir concert
• The choir director will select five students from each of the forty homerooms in the school

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CCSS.Math.Content.7.SP.A.1

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the first five who raise their hands.

• Systematic
• Convenience
• Voluntary Response
• Simple Random

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CCSS.Math.Content.7.SP.A.1

A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?

• The sample didn't include students.
• The sample is too small.
• The sample can only be accurate if each teacher is included in the sample

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CCSS.Math.Content.7.SP.A.1

You want to know your classmates' favorite food so you ask them, "Do you like ice cream?"
Is this question fair or biased?

• BIASED
• FAIR

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CCSS.Math.Content.7.SP.A.1

As a part of a survey, 50 students were asked about their favorite lunch item. The results are shown below.

• Pizza 10
• Tacos 5
• Hot dogs 15
• Hamburgers 20
• 
  

The cafeteria manager knows that about 300 students buy lunch from the cafeteria each day. Based on the table, she predicts that 60 students will buy pizza each day. Which statement about her prediction is true.

• Her prediction is invalid because ⅕ of 50 is 10.

• Her prediction is invalid because ¼ of 300 is 75.

• Her predictions is invalid because 120% of 50 is 60.

• Her predictions is valid 20% of 300 is 60.

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CCSS.Math.Content.7.SP.A.1

How many vehicles get no more than 32 miles per gallon?

• 50

• 48

• 42

• 36

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CCSS.Math.Content.7.SP.A.1

How many female students are taking physics?

• 14

• 19

• 33

• 24

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CCSS.Math.Content.7.SP.A.1

Determine if the question is random or biased. Do you want a delicious salad for lunch or the usual sandwich?

• biased question

• random question

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CCSS.Math.Content.7.SP.A.1