The table here shows the standard reduction potentials of several half-reactions: Half-Reactions E8 (V) A21 1 2e2 A 21.46 B2 1 2e2 2B2 0.33 C31 1 3e2 C 1.13 D1 1 e2 D 20.87 (a) Which is the strongest oxidizing agent andwhich is the strongest reducing agent? (b) Which substances can be oxidized by B2? (c) Which substances can be reduced by B2? (d) Write the overall equation for a cell that delivers a voltage of 2.59 Vunder standard-state conditions
STA 100 NOTES WEEK 2 FALL 2016 LECTURE 2 Data Visualization: Categorical variables (labels, categories) that help to find trends. I) Pie Charts ***Melcon does not like these -takes a circle, splits it into pieces, and makes each slice a representative of a percentage. Example Pros: Cons: ● Gives the highest and lowest of the ● Difficult to compare slices data set ● Becomes cluttered with many categories ● Cannot easily have more than 1 categorical variable II) Bar Plot (Bar Chart) -Allows for 2 categorical variables. Example Pros: ● Much easier to compare Cons: ● Can get crowded, which is difficult to avoid **Can use relative frequencies. Relative Frequency = frequency / n A B C D Male 8 10 2 4 Female 7 10 8 1 Male Rel. .16 .20 .04 .08 Female Rel. .14 .20 .16 .02 III) Mosaic Plot -Horizontally stacked bar plot -Can have between 1 and 3 categorical variables. -1 categorical variable means we are only com
