00:01
Okay, so i see that you need help with this question.
00:05
And so the first thing, so it says the average sat critical reading scores for the 50 states appearing below, they are in increasing order.
00:15
So first thing that i would do is they're in increasing order, so it wants you to determine the five -number summary of the state average sat critical reading scores.
00:26
So for the five -number summary, that means that you have to find the minimum, the max, quartile one, so first quartile, the median, the third quartile, and the maximum.
00:49
And so i'm just going to bold this and highlight it and box it off.
00:55
And i'm just going to make this also bigger.
00:59
So then we have the minimum and then we have the maximum.
01:06
So maximum is 599 and the minimum is 469.
01:16
And so the median, that's the middle number, is going to be, so you could do equals the median, so that's the number that's in the middle, and it takes all of the numbers, and there's 50 of them, so between the 25th and the 26th number is 23, so 25th and 26th number is 23.
01:45
And so that's where the median goes.
01:47
And so the 25th number, so there's 25 numbers, so the 13th number is the first quartile, so that's 495.
01:57
And then if i count down to the 13th number, so you could also do equals median and then from here down, and so it is 572, and so there we go.
02:21
So does california's average score of 499 fall in the top half of the states of the sat critical reading score? does it fall above the bottom quartile? support your answer.
02:34
So 499, so if i do a, 499 falls in the bottom half of the data set.
02:49
And it is between the first quartile and the median.
03:02
And so i'm going to merge all of this.
03:13
Then for b, roughly what percentage of states have scores higher than wyoming's 572? so the percentage that are higher is 25%, okay? so b, about 25 % of scores are higher than wyoming's 572...