SAT Study Guide Explanations, Test 1, Section 4, Question 14

SAT Study Guide Explanations, Test 1, Section 4, Question 14

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00:00
for question number 14 I'm not gonna draw or write out all those numbers but I want you to look at the graph when we get rid of 24 see the mean the mean is the average there's so many numbers there even though you have that outlier 24 it's a big number it's not gonna affect the mean that much because you are dividing it by so many different members it being the total there's a total of 20 on there things are fishes that your fishies are fish that you're measuring and then we take out that 24
00:31
you're only dividing it by 20 not let's just fallin so but have even having to do the math not falling that much look at median it scraps even falling less because why well the median just means the middle number there's a whole bunch of 12s there in the middle you take away 24 the meetings might still be 12 so don't listen you figure that out look at all your options look at see range range means the difference between the highest and the lowest we're not diluting or weakening the highest by adding it by all these other numbers and then dividing it as we did a we're simply
01:01
taking the highest which is 24 this outlier subtracted by a 16 that's the range so when we take out 24 we have a new range and it's 16 minus 8 that went all the way down from 16 to 8 so when you take out 24 the average for getting or not do not need to find the average of the mean but you know it's not gonna fall by a total of 8 they definitely are not d they will change by the same amount so therefore without doing too much real math but just a little bit of logic we can arrive at Amster twice see

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