Unit 6: Statistics Review

A poll is taken from 100 seniors in a high school where the senior class has 575 students. This is an example of a ______________.

• Sample

• Population

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

What is the name of a survey that includes all members of a population being studied?

• Sample
• Census
• Statistic
• Data

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• Quartile

A student surveys mathematics teachers to get their opinion on teaching.  What is the sample?

• All teachers in the world.
• All teachers within the school.
• All mathematics  teachers in the school.
• All teachers except mathematics teachers.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

According to a random telephone survey, 85% of all working adults in the U.S. are satisfied with their current job. If I asked 500 adults, how many do you predict would be satisfied with their current job?

• 85 adults
• 340 adults
• 500 adults
• 425 adults

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Gio surveys 40 Quick Trip employees. He reports that 5 out of 15 fast-food employees are satisfied with their hourly pay rate. What percentage of employees are happy with their pay rate?

• 40%
• 33%
• 12.5%
• 38%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

In a study, researchers found 1 out of 20 video games were defective. About how many video games would be defective in a shipment of 490 video games? (Round your answer to the nearest whole number.)

• 490

• 25

• 98

• 100

There are 480 students in Marla’s school.  In her classroom, there are 3 left-handed students and 17 right-handed students.  Predict the number of left-handed students in the whole school.

• 72
• 85
• 124
• 208

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

An ice-skating rink inspects 25 pairs of skates and finds 2 pairs to be defective.  The rink has 175 pairs of ice skates. Predict the number of pairs that are likely to be defective.

• 14
• 50
• 7
• 65

Tags

CCSS.7.RP.A.2

CCSS.7.SP.A.1

CCSS.7.SP.A.2