Stats Lesson 1 - Populations and Samples

A ______ is the entire set of objects from which data might be collected

• sample

• population

• numerical summary

• statistic

A _______ is a subset of the population.

• population

• numerical value

• statistic

• sample

True or False: All samples lead to a good prediction about the entire population.

• True

• False

A beverage company wants to see if people in the United States like their new logo. Which of the following represents the population?

• 2,000 people ages 5-13

• A selection of logo artists

• A selection of shoppers from different states

• all the people in the United States

A beverage company wants to see if people in the United States like their new logo. Which of the following represents the best choice for a sample?

• a collection of shoppers from different states

• all the people living in the United States

• a selection of logo artists

• 2,000 children from ages 5-13

A toy store owner wants to know how much kids spend each month on toys. Which choice is the best representation of the population?

• 220 wealthy kids

• all the kids who buy toys

• 100 boys ages 8-12

• 125 girls ages 10-15

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• 30 randomly selected students in the school

• 30 of her friends

• 30 students who are often tardy

• 30 students who are not often tardy

A survey company was trying to see if people in a state thought the pollution was too high. Which choice BEST represents the population to be surveyed?

• a selection of people who live in small towns

• a selection of people who live in clean neighborhoods

• a selection of people from each city in the state

• all the people in the state

A school principal wants to see which subject the 695 students in his school liked best. Which choice BEST represents a sample?

• all the girls in the school

• the students who have an A in math class

• the students who have a D in science class

• 1 classroom for each grade level

True or False: You want to see how many students take the bus home from school. You go to the bus stop and ask students how they get home everyday. This is a good, representation of the population.

• True

• False