Question

the variable is “number of motor vehicle fatalities”

A. Continuous, ratio level

B. Discrete, nominal level

C. Discrete, ratio level

D. Continuous, interval

ALSO PLEASE EXPLAIN ANSWER

i think the answer is B?

not sure of correct answer

Answer 1

“number of motor vehicle fatalities” is discrete and ratio level which is option (c).

Because ratio scale provides unique possibilities for statistical analysis. In ratio scale, variables can be systematically added, subtracted, multiplied and divided (ratio). All statistical analysis including mean, mode, the median can be calculated using ratio scale. Also, chi-square can be calculated on ratio scale variable. This scale is used to calculate all the scientific variables. In fact, in the absence of a ratio scale, scientific variables cannot be measured.

While from a statistics point of view nominal scale is one of the easiest to understand measurement scale. As mentioned earlier, nominal scale is assigned to items that are not quantitative or number oriented.

It is discrete because Discrete variables are countable in a finite amount of time. For example, you can count the change in your pocket. You can count the money in your bank account. You could also count the amount of money in everyone’s bank accounts. It might take you a long time to count that last item, but the point is—it’s still countable.

While Continuous Variables would (literally) take forever to count. In fact, you would get to “forever” and never finish counting them. For example, take age. You can’t count “age”. Why not? Because it would literally take forever. For example, you could be: 25 years, 10 months, 2 days, 5 hours, 4 seconds, 4 milliseconds, 8 nanoseconds,…and so on.