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BUSINESS ANALYTICS BUS1BAN ASSIGNMENT 1: DESCRIPTIVE STATISTICS AND BASIC PROBABILITY THEORY QUESTION 1 Part 1 The stem-and-leaf displays Forgive Stems: \$100 Leaves: \$10 Stems Leaves 1 5 5 9 9 2 3 3 2 4 6 6 6 4 0 2 3 5 1 1 2 2 5 6 7 8 8 9 6 0 0 2 2 8 9 9 7 0 1 5 6 7 8 9 8 2 2 5 6 9 9 1 2 7 10 1 1 3 4 9 11 5 6 Rejoice Stems: \$100 Leaves: \$10 1

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Stems Leaves 2 1 5 3 0 0 0 1 1 1 2 2 5 6 7 8 8 8 8 9 4 0 0 1 1 2 2 2 3 3 5 5 8 8 5 0 0 0 1 6 0 2 3 5 7 1 5 8 4 9 3 3 7 8 10 3 7 8 11 0 2 12 13 4 The frequency, percentage, cumulative frequency and cumulative percentage distribution tables Forgive Costs Frequency Percentage % Cumulative frequency Cumulativ e percentag e % \$0<\$100 0 0% 0 0.00% \$100<\$200 4 7.69% 4 7.69% \$200<\$300 1 1.92% 5 9.62% \$300<\$400 6 11.54% 11 21.15% \$400<\$500 2 3.85% 13 25.00% \$500<\$600 11 21.15% 24 46.15% \$600<\$700 7 13.46% 31 59.62% \$700<\$800 6 11.54% 37 71.15% \$800<\$900 5 9.62% 42 80.77% 2
\$900<\$1000 3 5.77% 45 86.54% \$1000<\$1100 5 9.62% 50 96.15% \$1100<\$1200 2 3.85% 52 100.00% Total 52 100% Rejoice Costs Frequenc y Percentage % Cumulative frequency Cumulative percentage % \$100<\$200 0 0.00% 0 0.00% \$200<\$300 3 5.77% 3 5.77% \$300<\$400 16 30.77% 19 36.54% \$400<\$500 14 26.92% 33 63.46% \$500<\$600 3 5.77% 36 69.23% \$600<\$700 3 5.77% 39 75.00% \$700<\$800 2 3.85% 41 78.85% \$800<\$900 1 1.92% 42 80.77% \$900<\$1000 4 7.69% 46 88.46% \$1000<\$1100 4 7.69% 50 96.15% \$1100<\$1200 1 1.92% 51 98.08% \$1200<\$1300 0 0.00% 51 98.08% \$1300<\$1400 1 1.92% 52 100.00% Total 52 100.00% The frequency histograms The percentage polygons 3

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The ogives The separate scatter diagrams for Sales and Costs with the appropriate independent variables Part 2 The mean, the median and mode along with the standard deviations for the Costs values for both types of chocolate .
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