Advanced Algebra - Test 1 Review

Before a nation wide election, a polling place was trying to see who would win.
Which choice best represents a sample?

• A selection of voters over age 50.
• A selection of male voters.
• A selection of voters of different ages.
• All of these.

A toy store owner is tracking how much kids spend each month on toys.
Which choice best represents a population?

• All of the kids who buy toys.
• 227 rich kids.
• 228 boys age 7-15.
• 235 kids from age 10 to 15.

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

A restaurant chain wanted to find out how the customer experience was in a store.
Which choice best represents a statistic?

• The percentage of all customers that reported a positive experience.
• The percentage of customers surveyed that reported a  positive experience.
• All customers.
• A random selection of customers that were surveyed.

A survey company was trying to see if people in a state thought the pollution was too high.
Which choice best represents a parameter?

• All people in the state.
• Percentage of all people in the state who thought the pollution was too high.
• 500 randomly selected residents of the state.
• 71% of the residents surveyed thought the pollution was too high.

Determine whether the data are qualitative or quantitative.
Drink Sizes at McDonalds (S, M, L)

• Qualitative
• Quantitative

Determine whether the data are qualitative or quantitative.
Altitude of an airplane

• Qualitative
• Quantitative

Determine whether the data are qualitative or quantitative.
Flavor of Buffalo Wing (Mild, Medium, Hot...)

• Qualitative
• Quantitative

Determine whether the data are qualitative or quantitative.
Speed of cars on the highway.

• Qualitative
• Quantitative

What is a smaller, representative group drawn from a population?

• unit

• sample

• parameter

• statistic