00:01
So i see that you need help for this problem.
00:05
And so it says the table below shows the frequency distribution of 400 newly started students per week for watching tv in minutes.
00:15
It wants to know the upper limit of the fifth class, it should say, not fifth grade.
00:21
And so the fifth class, the upper limit is 799.
00:26
And so the eighth grade lower limit, it's the eighth class lower limit, not grade.
00:38
The eighth class lower limit is 1000.
00:42
The class limits of the last class, so that is c is 1199.
00:52
The class width is 100.
00:55
Hundred.
00:57
The frequency of the fourth class, that is 76.
01:02
The proportional frequency of the sixth class, so that is 62 out of a hundred.
01:10
I'm sorry, out of 400.
01:13
So 62 out of 400.
01:18
And so if it wants you to divide so i have 31 out of 200 so just in case you can't see f is 62 out of 400 which if i need it simplified is 31 out of 200 g 600 minutes of watching tv per week and the percentage of students who do not exceed 600 minutes of okay so g percent of students who do not exceed 600 is you're gonna add 58 plus 46 plus 14.
02:08
So that would be 58 plus 46 plus 14.
02:15
That is 118 out of 400.
02:21
And so that would be simplifying 59 out of 200.
02:32
H, the percentage of students who watch tv for 900 minutes or more per week so that would be 48 plus 22 plus 6 out of 400 so that's 48 plus 6 plus 22 that is 76 out of 400 76 divided by 2 is 38 out of 200 and then simplifying this would be 19 over a hundred.
03:05
Um, then for i time to watch tv for at least 500 minutes per week, but a hundred minimum, i'm sorry, but a thousand minimum...