00:01
Okay, so if we create a group frequency table for the data, we find that we get this.
00:04
So i've chosen to use five bins of width seven.
00:07
And so the two between 50 and 56 .99 are coat duro and burkina faso.
00:13
These three here are zimbabwe, ghana and afghanistan.
00:22
And then you can keep going and count the frequency between each of these ones.
00:25
And this is the frequency table you get.
00:28
In part b it says we've got a wide range of data, the lowest life expectancy, being 50 .72 and the highest, and that's in cote d 'ivoire in africa, and the highest being 83 .58 in japan in asia.
00:41
And so it asks us a research question that could come to mind.
00:46
And so one research question could be, is the average life expectancy the same in all continents, right? because japan is in asia, cote d 'ivoire is in africa, so a natural question would be, does the life expectancy depend on the continent? for part c, we want a grouped histogram for these data.
01:15
And if we do that, we find that we get the following.
01:17
This is just translating our grouped frequency table above into a histogram...