A company database contains the following information about each employee: age,

Question

A company database contains the following information about each employee: age, marital status, social security number, smoking status (smoker or nonsmoker), and salary. How many categorical variables are there in the database? Zero One Two Three Four In order to be correct, a line graph of the number of suicides per year in the United States must have which of the following? number of suicides on the horizontal scale. years on the horizontal scale. either suicides or years on the horizontal scale, as long as equal intervals are used. bars of equal width. If a variable can be graphed using both a Bar graph and a Pictogram, the variable must be which of the following? A Numerical variable A Categorical variable Either a Numerical or a Categorical variables

Explanation / Answer

Question8:

Categorical variables are: Marital status, social security number, smoking status

Hence, number of categorical variables are 3.

Question 9:

We need to indentify number of suicides per year so dependent variable is number of suicides and independent variable year.

So option "year on horizontal axis" is correct.

Question 10:

Variable can be either numerical or categorical.

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