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Lecture Probability & statistics: Chapter 2 - Bùi Dương Hải

Lecture "Probability & statistics - Chapter 2: Tables & charts" has contents: Frequency, relative frequency, cumulative table; pie chart; bar chart, column chart; histogram; line chart; radar chart; rcatter plot, bubble chart. | Lecture Probability & statistics: Chapter 2 - Bùi Dương Hải LECTURE 2 – TABLES & CHARTS [1] Chapter 2, pp. 33 – 79 Frequency, relative frequency, cumulative table Pie chart Bar chart, Column chart Histogram Line chart, Radar chart Scatter plot, bubble chart PROBABILITY & STATISTICS– Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 1 Raw data Data from a customer survey, n = 50 observations No. Sex (Male / Age Waiting time Evaluation Female) (year) (Minute) (VG, G, F, B) 1 Female 43 15 to 20 Bad 2 Male 23 0 to 5 Good 3 Female 36 5 to 10 Very Good 50 Female 28 10 to 15 Fair PROBABILITY & STATISTICS – Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 2 Frequency & Relative frequency Frequency table of Gender Sex Male Female Frequency 20 30 Relative frequency (proportion): = ( ) Sex Male Female Relative frequency 0.4 0.6 Proportion, percent 40% 60% PROBABILITY & STATISTICS – Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 3 Pie chart Gender Sex Male Female Male [VAL Freq. 20 30 Female [VAL UE] UE] [PER % 40% 60% [PER CE CE Evaluation Evalua Very Very Good Good Fair Bad tion Good Good [VALUE [VALUE Fair [VALUE ] ] Freq. 10 25 9 6 ] [PERCE [PERCE Bad [PERCE NTAGE] [VALUE NTAGE] NTAGE] ] % 20% 50% 18% 12% [PERCE NTAGE] PROBABILITY & STATISTICS – Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 4 Column chart Evaluation Evaluation Freq. % 30 Very Good 10 20% 25 25 Good 25 50% 20 Fair 9 18% 15 Bad 6 12% 10 TOTAL 50 100% 10 9 6 5 0 Very Good Good Fair Bad PROBABILITY & STATISTICS – Bui Duong Hai – NEU – www.mfe.edu.vn/buiduonghai 5 Cross frequency table – Column chart Evaluation Very Good Good Fair Bad Sum Male 6 11 2 1 20 Female 4 14 7 5 30 Sum 10 25 9 6 50 Evaluation by Gender Gender by Evaluation 16 14 14 14 12 11 10 11 8 7 6 6 5 7 4 6 4 5 2 4 2 1 2 1 0 MALE FEMALE VERY GOOD