TEKS.MATH.7.6F

Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative?

• yes
• no

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TEKS.MATH.7.6F

Elise, a supermarket employee, approached 50 random customers and asked whether they would be willing to discuss what they like most about the store. She interviewed the 22 who said yes. Is this sample of the supermarket's customers likely to be biased?

• yes

• no

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TEKS.MATH.9-12.VI.C

TEKS.MATH.7.6F

Megan surveyed a random sample of 60 students at her school and found that 42 of them ride the bus to school each day. If there are 320 students at Megan’s school, about how many of them ride the bus to school each day?

• 348
• 224
• 188
• 132

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TEKS.MATH.7.6F

Marianne wanted to know students' opinion on the new schedule at school. She places all students' names in a container and picks out 20 to survey. 

• Convenience Sampling
• Systematic Sampling
• Random Sampling
• Volunteer response

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TEKS.MATH.7.6F

A school surveys all 7th grade boys to determine what to sell in the school store.  This sample is _________.

• Biased
• Unbiased
• Representative
• Peanut butter cups

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TEKS.MATH.7.6F

A mayor wanted to see if the people in his town thought he was doing a good job. Which choice best represents a sample?

• 1,000 unemployed voters.

• The mayor's family.

• The residents of the town.

• 242 voters.

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TEKS.MATH.9-12.VI.A

TEKS.MATH.7.6F

A travel club has 3,000 members.  A random sample of 50 of the club members found that 12 people like mountain vacations best.  Which statement is NOT supported by the sample data? 

• Twenty-four percent of those sampled say they like mountain vacations best.  
• An estimated 720 club members would likely say they enjoy mountain vacations best. 
• Almost one-quarter of club members would likely say they enjoy mountain vacations best. 
• More than 2,500 club members would likely say they prefer other vacations over mountain vacations. 

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TEKS.MATH.7.6F

A quality control inspector at a clothing manufacturer is checking to make sure collars on shirts are sewn correctly.  Twenty shirts are randomly chosen and 3 have defective collars.  Shirts that are defective are discarded.  Based on this sample, how many shirts do you predict are likely to be discarded in a week when 500 shirts are produced? 

• 17
• 20
• 75
• 425

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TEKS.MATH.7.6F

Biased or Random?

Jameson and Brevon want to determine the most popular Basketball player in all of Menifee County so they poll everyone at lunch.

• Biased

• Random

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TEKS.MATH.7.6F

How many male students were surveyed?

• 23

• 47

• 80

• 33

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TEKS.MATH.7.6F