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The accompanying table shows the scores on a classroom test. What is the population standard deviation? x: 100, 95,90,80,75, 72, 70 f: 7, 2, 10, 4, 2, 3, 4

Mathematics
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ok, so first we find the average of the population
is it possible to do this on the calculator?
of course

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Other answers:

is 10.74054817 correct?
no, i got 88,
ill show you why, its long tedious, but simple. bear with me
wait, did you get 10.74054817 for the average?
wait before you do all that can't you put it in the table on the calculator and then hit 1var stats and type in (L1,L2)
well its population standard deviation remember
yes, but you need to find the average of the population first. did you do that?
thats not the way we did it so im not sure how to do that..
find the average? you know. if we have 6,8,4 we find the average by (6+8+4)/3= 6 so the average of this population is 6
ill do this in the calculator can you look at the other two please?
ok

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