He explained to me they represented the distribution of male and female intelligence. He speculated that male intelligence was the wider curve—the implication being that woman<span> may be a little </span>smarter<span> than </span>men<span>, on average, but most are just average. </span>Men<span> are more likely to be extremely </span>smart<span> or stupid.</span>
The Answer is D :) Hope this helps!
The dependent variable is always the label on the y-axis, so speed. By dependent, that means that variable changes depending on another variable.
The label on your x-axis is always your independent variable, meaning it doesn't change depending on anything else.