Question

uy shwe curve (p. 65) I QUESTIONS AND PROBLEMS Category of Scientist Annual Salary (5) Biological and Health Sciences Chemistry Computer and Math Sciences Psychology Sociology and Anthropology 70,100 79,100 75,000 66,700 63.100 3. The following table gives the 2002 me dian a nnu- al salaries of various categories of scientists in the United States holding Ph Ds. Construct a bar graph for these data with "Annual Salary" on the Yaxis and "Category of Scientist" on the X axis. Arrange the categories so that the salaries decrease from left to right scow
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Answer 1

In this question we are asked to find bar diagram for 'annual salary' vs 'category of scientist'.

Bar diagram: This type of diagram is used to represent data when we specially want to compare the values of multiple variables. say A=6, B=2, C=9 then we can easily see that C>A>B but to visualize this bar diagram will be appropriate. We need to plot the categorical variable (here A, B, C) in x-axis and values in y-axis. We place categories in x axis at equivalent distance to one another.

Now we need make the plot such that salaries are in decreasing order,

that is categories will be in order in decreasing as per salary,

Chemistry (79100)

Computer and Maths Science (75000)

Biological and health science (70100)

Psychology (66700)

Socialogy and Anthropology (63100)

Hence the plot is

Bar Diagram 90000 80000 70000 60000 Salaries 50000 40000 111 30000 20000 10000 0 Chemistry Computer and Maths Science Biological and health science Psychology Socialogy and Anthropology category of scientist