Question

Suppose that a data set contains a variable EDUCATION, which has $7$ discrete levels. EDUCATION can be represented by …. binary variables.

• A. $6$
• B. $7$
• C. $8$
• D. $9$

Answer 1

The correct option is A

$6$

To find the binary variables.

Explanation for correct option: option $\left(\text{A}\right)$

The discrete levels are $7$.

So, the binary variables are $7-1=6$

Therefore, option $\left(\text{A}\right)$ is correct.

Since this option is correct, so the rest of the options are incorrect.

Hence, option $\left(\text{A}\right)$ is correct answer.