frequency polygons - corbettmaths · pdf filefrequency polygons videos 155 and 156 on *there...

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!FrequencyPolygons

Videos155and156onwww.corbettmaths.com

� *TherearetemplatesforQuestions1and2attheendofthisexercise

Question1: Drawafrequencypolygonforeachtableofinformationbelow.(a) (b) (c)

Question2: Drawafrequencypolygonforeachtableofinformationbelow.(a) (b) (c)

Question3: Foreachfrequencypolygon,completethefrequencytable.

(a) (b)

Workout

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!FrequencyPolygons

Videos155and156onwww.corbettmaths.com

Question4: Foreachfrequencypolygon,completethefrequencytable.(a) (b)

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Question1: Tiaaskedherfriendshowmanytimestheyvisitedthecinemalastmonth. Thefrequencypolygonshowsherresults.

(a)Howmanypeoplevisitedthecinematwice?

(b)Whatismostpopularnumberoftimesthatherfriendsvisitedthecinema?

(c)Whatisthemostnumberoftimesthatsomebodyvisitedthecinema?

(d)HowmanypeopledidTiasurveyintotal?

Apply

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� �

!FrequencyPolygons

Videos155and156onwww.corbettmaths.com

Question2: Henrysurveyed50people. Thisfrequencypolygonshowstheirshoesizes.

(a) Whatisthemodalshoesize?

(b)Whatistherangeoftheshoesizes?

(c)Whatfractionofthepeoplesurveyedhavesize5shoes?

(d)Whatpercentageofthepeoplesurveyedhavesize7shoes?

(e)Henrypickssomebodyatrandomtowinaprize.Writedowntheprobabilitythatthewinnerhassize6shoes.

Question3: RoyisastrikerforRovers.Thefrequencypolygonshowsthenumberofgoalsscoredineachgameover20gameshehasplayed.

(a)Workoutthemediannumberofgoalsscoredpergame.

(b)Workoutthemeannumberofgoalsscoredpergame.

(c)Ajournalistaskshimforthe“average”numberofgoalsscoredpergame.Whichaverageshouldheuse?

Question4: Thefrequencypolygonsshowtheamountoftimethat30studentsinyear7 and30studentsinyear11spentontheirlastmathshomework. Comparethetimespentonhomeworkbytheyear7sandtheyear11s.

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!FrequencyPolygons

Videos155and156onwww.corbettmaths.com

Question5: 50boysand50girlsattendaprimaryschool. Thetablebelowshowshowmanyclubstheyattend. (a)Onthesamegrid,drawafrequencypolygonfortheboysandafrequency polygonforthegirls.

(b)Comparethedistributions.

Question6: Thefrequencypolygonshowsinformationabouttheamountoftimepeople spendinthegym. Calculateanestimateofthemeantimespentinthegym.

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� �

!FrequencyPolygons

Videos155and156onwww.corbettmaths.com

Question1(a)

Question1(b)

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Templates

� �

!FrequencyPolygons

Videos155and156onwww.corbettmaths.com

Question1(c)

Question2(a)

© CORBETTMATHS 2016

� �

!FrequencyPolygons

Videos155and156onwww.corbettmaths.com

Question2(b)

Question2(c)

© CORBETTMATHS 2016