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Math 1030 Evening: 

Math 1030 Evening 2-3 Histograms

Polls of Today: 

Polls of Today Election 2006 - Minnesota Governor Incumbent: Tim Pawlenty (R) Challengers: Mike Hatch (D), Peter Hutchinson (I), Ken Pentel (G) Election 2006 - Minnesota Governor Incumbent: Tim Pawlenty (R) Challengers: Mike Hatch (D), Peter Hutchinson (I), Ken Pentel (G)

Data : 

Data Dogs in Pound by Weight

Histogram: 

Histogram 5 10 15 4.5 15.5 26.5 37.5 48.5 59.5 70.5 Frequency Weight of Dog

Frequency Polygon: 

Frequency Polygon 5 10 15 4.5 15.5 26.5 37.5 48.5 59.5 70.5 Frequency Weight of Dog 10 21 32 43 54 65

Ogive – Cummulative Frequency Polygon: 

Ogive – Cummulative Frequency Polygon 20 40 60 4.5 15.5 26.5 37.5 48.5 59.5 70.5 Frequency Weight of Dog

Slide8: 

Ages of US Senators For the Histogram, we need to define Boundaries. For the frequency polygon, we need midpoints For the Ogive, we need cumulative frequencies

Slide9: 

Note that the midpoints are not integers. We will live with this here. For text exercises, you should form class limits which span an odd number of numbers

Relative Frequency: 

Relative Frequency

Relative Frequency Histogram: 

Relative Frequency Histogram 39.5 49.5 59.5 69.5 79.5 89.5 .10 .20 .30

Relative Frequency Polygon: 

Relative Frequency Polygon 44.5 54.5 64.5 74.5 84.5 .10 .20 .30

Relative Cumulative Frequency Ogive: 

Relative Cumulative Frequency Ogive 39.5 49.5 59.5 69.5 79.5 89.5 .20 .40 .60 1.00 .80

Homework: 

Homework Read 2-3 Homework for section 2-3 Edition 2: 2-19,2-31, 2-20, 2-32, 2-28 Edition 3: 1, 13 2, 14 10 Read ahead section 2-4 on Other Types of Graphs