JMU MATH 105 Final Exam

Jmu Math 105 Final Exam With Correct
And Verified Answers Graded A+

Pilot vStudy v- vCORRECT✅✅a vsmall vgroup vof vpeople vare vasked va vquestion vin van
vopen vform vand vtheir vresponses vdictate vthe vchoices vfor vthe vclosed vquestion


Statistic v- vCORRECT✅✅Summary vof va vsample

Correlation v- vCORRECT✅✅Relationship vbetween vtwo vvariables

Study vQuestion v- vCORRECT✅✅survey, vquestionnaire, vetc

Population v- vCORRECT✅✅Group vof vindividuals, vunits, vor vsubjects

Parameter v- vCORRECT✅✅The vsummary vof va vpopulation

Sample v- vCORRECT✅✅Subset vof vthe vpopulation vthat vwe vmeasure v(random,
vsize)


descriptive vstatistic v- vCORRECT✅✅summary vof vstatistics vthat vquantitively
vsummarizes vthe vcollection vof vinformation v(graphs, v%, vnumbers)


Inferential vstatistic v- vCORRECT✅✅By vprobability vrules, vwe vmake vconclusions
vabout vthe vpopulation


Numerical vVariable v- vCORRECT✅✅Quantitative, vdiscrete v(listed vvariable),
vcontinous


discrete vvariable v- vCORRECT✅✅countable vfor va vfinite vamount vof vtime v(car
vaccidents v(1, v2, v3, vetc))


continuous vvariable v- vCORRECT✅✅it vwould vtake vforever vto vcount vor vanything
vwithin vthat vgiven vinterval v(age)


Categorical vvariable v- vCORRECT✅✅Qualitative, vnominal, vordinal, vpie vcharts

nominal vvariable v- vCORRECT✅✅numerical vdata v(zip vcode)

ordinal vvariable v- vCORRECT✅✅level vdata v(class(F,S,J,Se))

explanatory vvariable v- vCORRECT✅✅variable vthat vchanges vthe voutcome vor
vresponse vvariable

, response vvariable v- vCORRECT✅✅the vpotential veffect vof vthe vdata vthat vwe
vmeasure


convenience vsample v- vCORRECT✅✅selecting va vsample vdue vto vease

Data v- vCORRECT✅✅Collection vof vnumbers vor vother vpieces vof vinformation vthat
vhas vbeen vgiven vmeaning


Deliberate vBias v- vCORRECT✅✅questions vworded vto velicit va vspecific vresponse vto
vsupport va vcertain vcause


unintentional vbias v- vCORRECT✅✅wording vof vquestions vthat vare vlargely
vmisinterpreted vdue vto vlack vof vspecificity vor vclarification


Open vquestions v- vCORRECT✅✅answers vcan vbe vdone vin vtheir vown vwords

Closed vquestions v- vCORRECT✅✅List vof vchoices vto vpick vtheir vanswers vfrom

Interval vvariable v- vCORRECT✅✅the vdifference vbetween vthe vtwo vvalues vare
vmeaningful


Ratio vVariable v- vCORRECT✅✅Has va vmeaningful vvalue vof vzero, vand vit vmakes
vsense vto vtalk vabout vthe vration vof vone vvalue vto vanother


valid vmeasurement v- vCORRECT✅✅actually vmeasures vwhat vit vclaims vto vmeasure

reliable vmeasurement v- vCORRECT✅✅consistent vwhen vtaken von vthe vsame vobject
vor vindividual


biased vmeasurement v- vCORRECT✅✅systematically voff vthe vmark vin vthe vsame
vdirection


variability v- vCORRECT✅✅difference vvariables vdue vto vunpredictable verrors,
vdiscrepancies, vor vnatural vdifference vthat vis vnot vexplained


measurement verror v- vCORRECT✅✅the vamount vby vwhich veach vmeasurement
vdiffers vfrom vthe vtrue vvalue


natural vvariability v- vCORRECT✅✅variability vthat vnaturally voccurs

Experiments v- vCORRECT✅✅when vthe vresearcher vapplies va vtreatment
v(explanatory vvariable) vto vparticipate vand vmeasure vthe vresponse vvariable


randomized vexperiments v- vCORRECT✅✅the vresearcher vassigns vtreatment
vthrough va vrandom vprocess