Question

dr. evans is studying the average time it takes a wolf to unlock a gate. in this experiment, the speed at which the wolf solves the problem is the what?
median
mode
variable
conclusion

Explanation:

In an experiment, a variable is a factor that can change. Here, the speed at which the wolf solves the problem can vary among different attempts or different wolves, so it is a variable. Median is the middle - value in a data set, mode is the most frequently occurring value, and conclusion is the end - result of the experiment.

Answer:

variable