Statistics - Types of Samples

A newspaper asks its readers to call in and answer the following question, "Are young adults unprepared for college?" What type of sample is this?

• Self-Selected Sample

• Systematic Sample

• Convenience Sample

• Random Sample

A good Samaritan decides to give $100 bills to strangers. They choose every 25th person who enters Target. What type of sample is this?

• Self-Selected Sample

• Systematic Sample

• Convenience Sample

• Random Sample

A representative for Macy's walks around the mall interviewing people about their brand perception of Macy's. What kind of sample is this?

• Self-Selected Sample

• Systematic Sample

• Convenience Sample

• Random Sample

Willy Wonka hides Golden tickets in his chocolate bar by picking the numbered bars that correspond to winning lottery numbers. What kind of sample is this?

• Self-Selected Sample

• Systematic Sample

• Convenience Sample

• Random Sample

Walmart gives desperate gamers numbers to selected 10 people who can purchase the latest shipment of PS5s. They use a bingo wheel to select the winners. What kind of sample is this?

• Self-Selected Sample

• Systematic Sample

• Convenience Sample

• Random Sample

Coca-Cola wanted to see if people in the United States liked their new logo. They station a representative outside of the nearest 7-11. What kind of sample is this?

• Self-Selected Sample

• Systematic Sample

• Convenience Sample

• Random Sample

Before a nation-wide election, a polling place was trying to see who would win. Campaigners called every 10th person on the national census. What kind of sample is this?

• Self-Selected Sample

• Systematic Sample

• Convenience Sample

• Random Sample

A toy store owner tracking how much kids spend each month on toys. They asked shoppers to fill out a form on the way out. What kind of sample is this?

• Self-Selected Sample

• Systematic Sample

• Convenience Sample

• Random Sample

Is the following an example of biased or unbiased sampling?

Asking my A Block who to determine who is the best rap artist of all time.

• Biased

• Unbiased

Is the following an example of biased or unbiased sampling?

Asking teachers to pick a winner for the foods cupcake competition.

• Biased

• Unbiased