00:01
The data shown here are the wrist diameters for males and females, and we are asked which of four statements is valid.
00:11
The first statement says a medium male wrist watch will fit about 20 % of the females in the sample.
00:19
Now, we don't have the size for the medium watch, but let's assume that it's somewhere near the medium for men's wrists, so meaning it's somewhere around 11.
00:29
So probably the females for whom this would fit would be these females.
00:35
Let's say that's about 52 if we add up the yellow highlighted numbers out of the total of 260.
00:43
It actually comes out to 0 .2.
00:44
So it sounds like this statement is probably true.
00:47
So let's flag the first statement as being true.
00:53
The second statement, the overall range in wrist measurements is larger for men.
00:58
So the wrist measurements for men go from approximately 9 .5 up to, let's say, 13 and a half.
01:07
So that's a range of 4 for men.
01:09
And then for women, they go from, let's say, 8 up to 12.
01:19
So that's also a range of 4.
01:22
So we wouldn't say that the overall range is greater for men...