Stats- 11.2

Determine whether the data are collected from a population or a sample.

the number of high school students in the United States

• Population

• Sample

Determine whether the data are collected from a population or a sample.

the color of every third car that passes your house

• Population

• Sample

Determine whether the data are collected from a population or a sample.

a survey of 100 spectators at a sporting event with 1800 spectators

Determine whether the data are collected from a population or a sample

the age of each dentist in the United States

Identify the population:

In the United States, a survey of 1152 adults ages 18 and over found that 403 of them pretend to use their smartphones to avoid talking to someone.

• every adult age 18 and over in the United States,

• the 1152 adults age 18 and over who were surveyed

• the 403 adults who pretend to use their smartphone to avoid talking to someone,

• 749 adults who do not.

Identify the sample:

In the United States, a survey of 1152 adults ages 18 and over found that 403 of them pretend to use their smartphones to avoid talking to someone.

• every adult age 18 and over in the United States,

• the 1152 adults age 18 and over who were surveyed

• the 403 adults who pretend to use their smartphone to avoid talking to someone,

• 749 adults who do not.

Determine whether the numerical value is a parameter or a statistic.

The average annual salary of some physical therapists in a state is $76,210.

Determine whether the numerical value is a parameter or a statistic.

In a recent year, 53% of the senators in the United States Senate were Democrats

Determine whether the numerical value is a parameter or a statistic.

A survey of U.S. adults found that 10% believe a cleaning product they use is not safe for the environment.

• Parameter

• Statisitic

Determine whether the numerical value is a parameter or a statistic.

Seventy-three percent of all the students in a school would prefer to have school dances on Saturday.

• Parameter

• Statisitic