00:05
All right.
00:06
So for this question, we're trying to interpret percentiles.
00:11
So for part a, when they ask about runners having a shorter time versus a longer time, and is it more desirable to have a lower or higher finish time? well, based off of the context of the question here, obviously, the lower your time, the faster you are running the race.
00:34
So it would make sense for part a that we do want, a lower percentile for this particular situation, because if you're finishing in the bottom 20 percent of times, that actually means you're running the fastest in the 20 percentile.
01:02
Now, specifically, that 20th percentile is being brought up in part b, where they're telling us that around 20th percentile is around 5 .2 minutes, write a sentence interpreting the 20th percentile.
01:14
So for part b, if we're going to write ourselves a sentence, that means, i guess we can use specifically the 5 .2 minutes as well.
01:29
Interpreting this would be 20 % of runners in the race had a finish time of 5 .2 minutes or less.
02:14
I'm going to scroll down here and we can talk about a bell curve quickly as well, just so people understand what we are referring to.
02:22
So imagine this basic bell curve finishing times, right? so here is about 50 % right down the middle.
02:29
So 20 % would be somewhere around here...