1.1 Practice

​ (a)   is the study of how to collect, organize, analyze, and interpret ​ (b)   .

• Statistics
• data
• Parameter
• Inferential
• samples

A (a)   is a part of a ​ (b)   .

• sample
• population
• Parameter
• Statistic

Why are samples used more often than populations in statistical studies?

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Label the diagram to show the relationship between a population, sample, and individual.

a

b

c

Individual

Population

Sample

The annual salary of each player on the Pittsburgh Penguins hockey team​ (a)  

The starting salary of the starting players on the Pittsburgh Penguins hockey team:​ (b)  

• population
• sample

The amount of energy collected from every 5th solar panel on a photovoltaic power plant:​ (a)  

Survey responses from 40 teachers at IHS:​ (b)  

• population
• sample

The number of wireless devices in every U.S. household:​ (a)  

The PR of every runner on the cross country team:​ (b)  

• population
• sample

A​ (a)   is a numerical description of a population characteristic.

A​ (b)   is a numerical description of a sample characteristic.

• parameter
• statistic
• data
• inferential

The average number of three-pointers scored by every player of the basketball team:​ (a)  

A survey of 95 IHS seniors shows that 61% of them plan to go to college.​ (b)  

• parameter
• statistic

83% of IHS students have less than 5 discipline referrals:​ (a)  

According to usafacts.org, 47% of registered voters have declared a party affiliation: (b)  

• parameter
• statistic