SAT Practice Test #1 Math Calculator #12

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Transcript

Based on the histogram above, of the following, which is the closest to the average arithmetic mean, of the number of seeds per apple? All right, so when they tell us the average, there are two pieces of information we need to know. And they tell us the number of seats per apple. So we want to know the number total number of seats because we're going to divide that by the total number of apples, and hence we get seeds per apple. All right, so let's get these two pieces of information. How are we going to get that?

Well, we need to get that from this histogram above and hopefully, what you want to do once you see a histogram is quickly look at the x axis and the y axis you want to know what each represents. So our x axis represents the number of seats. Okay, so we have apples with three seats, apples with 5679 For an eight that aren't present, and on the y axis says number of apples. So it tells us the number of apples that have each kind of number of seats in them. So if we look at the number of apples being two, so we have two apples that have three seats, okay? Then with those with five seats, we have four of them.

So we have four apples with five seats, and so on and so forth. We have two, we have one apple with six seats. We have two apples with seven, and we have three with nine seats. All right, well, this is very important because we can actually get a lot of information from this. And what you want to do now and you're probably already thinking about this is we can calculate the total number of seats using these two pieces of information. So let's start with the number of apples that have three seats.

So we have a total of two apples with three seats in each one. So how many Little Caesars that? Well, two apples times three season each Apple, that's six. Okay. What about the apples with five seats? Well, we have four apples with five seeds.

And each Apple has five seats. So four times five is 20. Okay, let's continue. We have one apple succeeds, so that's just six, we have two apples with seven seeds. So two times seven is 14. And we have three apples with nine seeds.

And that will give us a total of 27. All right, so here are our total number of seats just got to add up all these and if you add those all up, you should get if my math is right, and if it's not, well, you have a calculator, so you can check that out. It's 73. All right, so that's the total number of seats. And we still need to know the total number of apples Well, you can add all those up here from the y axis or you just read the title says 12 apples, so that's really nice of them. So now what we want to do is we want to do 73 divided by 12 and the closest answer choice which will be 6.8 is C

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