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

A homeowner measured the voltage supplied to his home

on26daysofagivenmonth,

and the average (mean) value is

141.2

volts.

Choose the correct answer below.

A.

The given value is a

parameter

for the

month

because the data collected represent a

sample.

B.

The given value is a

statistic

for the

month

because the data collected represent a

sample.

C.

The given value is a

parameter

for the

month

because the data collected represent a

population.

D.

The given value is a

statistic

for the

month

because the data collected represent a

population.

Determine whether the underlined number is a statistic or a parameter.

Asampleofstudentsisselectedanditisfoundthat45%ownatelevision.

Choose the correct statement below.

Statistic

because the value is a numerical measurement describing a characteristic of a

population.

Statistic

because the value is a numerical measurement describing a characteristic of a

sample.

Parameter

because the value is a numerical measurement describing a characteristic of a

population.

Parameter

because the value is a numerical measurement describing a characteristic of a

sample

Identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.

To determine her

mood,

Charlotte

divides up her day into three parts: morning, afternoon, and evening. She then measures her

mood

at

3

randomly selected times during each part of the day.

What type of sampling is used?

Convenience

Systematic

Stratified

Random

Cluster

Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster.

Anewspaper

asks its

readers

to call in their opinion regarding

theirtasteinreading.

Which type of sampling is used?

A.

Systematic

B.

Stratified

C.

Cluster

D.

Random

E.

Convenience