According to the distribution, if 1,000 students who took the test are randomly selected, how many scored a 2 or higher? A. 88 B. 120 C. 340 D. 880

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According to the distribution, if 1,000 students who took the test are randomly selected, how many scored a 2 or higher? A. 88 B. 120 C. 340 D. 880

Mathematics
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1 Attachment
Notice that these circled numbers below represent the height of bars, which represents the probability of achieving a particular test score. |dw:1439181806830:dw|

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Looking at that diagram, can you tell the probability of achieving a test score of 2 ?
34%?
Yes! whats the probability of achieving a test score of 3 ?
31%
good, so whats the probability of achieving a test score of 2 or higher ?
88% ?
Excellent! lets get back to the main problem
you have 1000 students and you know that 88% of them are most likely to score 2 or higher
so you simply need to find 88% of 1000 to get the number of students that score 2 or higher
whats 88% of 1000 ?
do i divide them?
88% means 88 in every 100
so how many in 1000 ?
make a good guess, im sure u wil be right
i got 0.088?
0.088 students? haha are you planning to cut the students ? maybe forget the formulas. out of 100 students, if 88 students are good, then how many students will be good out of 1000 students ?
100 ---> 88 1000 --> ?
is it 880 by any chance?
Yes, aren't you sure ?
I added 88, 10 times... 😅
interesting, why ?
I could've multiplied it, but I didn't think of it, and bc if 100 = 88 and 100, 10 times is 1000 so I added 88 10 times..
Awesome! thats good thinking!
btw, 880 is correct
880 is 88% of 1000

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