Question

1) The personnel office of a corporation records the following variables on each of its employees. Identify whether the variable is categorical or numerical.

Current Salary, Gender, Occupation, Years of Education

a) Which of the variable(s) above would you use the Mean (average) to summarize?

b) For the variable current salary, would a pie chart or histogram be more appropriate way of visually summarizing the data?

Answer 1

The personnel office of a corporation records a variable on each of its employees. There are four variables Current Salary, Gender, Occupation, Years of Education

Ans=

a) = from the above variables current salary variable would you use the mean to summarize the data. because this variable is numerical variable.

b) = Produce a histogram for the variable Current Salary. The quantitative variable current salary has many adjacent values. We may group the values into intervals. A histogram can be used to display the distribution of such grouped values. Histogram more appropriate way of visually summarizing the data.