Intro to Statistics

The correct definition for a sample is:

• a survey which is conducted on the entire population

• a set of data taken from only part of a population

• when a sample favours a certain outcome

• the amount surveyed

"Noticing and recording a certain characteristic of a group" is the definition for:

• Observation

• Bias

• Survey

• Sample

If the entire population is surveyed, the type of survey is a/an:

• Stratified Sampling

• Random Sampling

• Population Sampling

• Census

The outlier is:

• an outcome which lies outside of the mean

• where a single observation does not fit with the expected outcome

• when a sample favours a certain outcome

• where a single outcome is provided

_______ is the entire group of objects or individuals considered for a survey.

• Sample
• Population
• Random Sample
• Quartile

Mrs. Delgado asks the first ten students at Freeport Elementary about what they think the new school's mascot should be. Identify the population and sample.

• Population: First ten students

  Sample: All students at Freeport Elementary

• Population: All students at Freeport Elementary

  Sample: First ten students

A school principal wants to offer an after-school club setting. She decided to survey 300 students about this. Which word best describes the group of 300 students?

• Population

• Sample

• Census

• Prediction

Identify the Sample:
A restaurant wants to know if customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The restaurant concluded that most customers do not order dessert.

• 20 customers
• All customers
• 8 customers
• Dessert

Identify the Population:
Gwinnett County Public Schools randomly selected 230 teachers to find out which technology resource is the most effective. 30 teachers chose Safari Montage, 45 selected Learn Zillion, 100 chose Ed Puzzle, and 55 chose Kahoot. GCPS concluded that all teachers prefer Ed Puzzle.

• 230 Teachers
• All teachers
• 100 Teachers
• 55 Teachers

Will conducting this survey introduce bias?

Surveying parents of Year 8 students to find out how many children the average adult has.

• Yes, because the survey was conducted with only parents of Year 8s.

• Yes, because the survey was conducted only with adults.

• Yes, because parents are able to opt out and not complete the survey.

• No, there is no bias.