frequency polygons - corbettmaths · pdf filefrequency polygons videos 155 and 156 on *there...
TRANSCRIPT
� �
!FrequencyPolygons
Videos155and156onwww.corbettmaths.com
� *TherearetemplatesforQuestions1and2attheendofthisexercise
Question1: Drawafrequencypolygonforeachtableofinformationbelow.(a) (b) (c)
Question2: Drawafrequencypolygonforeachtableofinformationbelow.(a) (b) (c)
Question3: Foreachfrequencypolygon,completethefrequencytable.
(a) (b)
Workout
© CORBETTMATHS 2016
� �
!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
© CORBETTMATHS 2016
� �
!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.
© CORBETTMATHS 2016
� �
!FrequencyPolygons
Videos155and156onwww.corbettmaths.com
Question5: 50boysand50girlsattendaprimaryschool. Thetablebelowshowshowmanyclubstheyattend. (a)Onthesamegrid,drawafrequencypolygonfortheboysandafrequency polygonforthegirls.
(b)Comparethedistributions.
Question6: Thefrequencypolygonshowsinformationabouttheamountoftimepeople spendinthegym. Calculateanestimateofthemeantimespentinthegym.
© CORBETTMATHS 2016
� �
!FrequencyPolygons
Videos155and156onwww.corbettmaths.com
Question1(a)
Question1(b)
© CORBETTMATHS 2016
Templates
� �
!FrequencyPolygons
Videos155and156onwww.corbettmaths.com
Question1(c)
Question2(a)
© CORBETTMATHS 2016
� �
!FrequencyPolygons
Videos155and156onwww.corbettmaths.com
Question2(b)
Question2(c)
© CORBETTMATHS 2016