Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home

on20daysofagivenmonth, and the average (mean) value is 105.8 volts.

Choose the correct answer below.

A.

The given value is a

statistic

for the

month

because the data collected represent a

sample.

B.

The given value is a

parameter

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 value given below is from a discrete or continuous data set.

Inatestofamethodofgenderselection,692couplesusedtheXSORTmethod and

389 of them had baby girls.

A

continuous

data set because

thereareinfinitelymanypossiblevaluesandthose

valuescanbecounted

B.

The data set is neither continuous nor discrete.

C.

A

continuous

data set because there are infinitely many possible values and thosevaluescannotbecounted

D.

A

discrete

data set because

thereareafinitenumberofpossiblevalues

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

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

bloodpressure at 2 randomly selected times during each part of the day.

What type of sampling is used?

Convenience

Cluster

Systematic

Random

Stratified

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

Atelevisionstation asks its

viewers to call in their opinion regarding

thevarietyof sportsprogramming.

Which type of sampling is used?

A.

Cluster

B.

Stratified

C.

Systematic

D.

Convenience

E.

Random