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Mathematics 26 Online
OpenStudy (anonymous):

Based on the bar graph shown below, the 25th percentile is located in which interval? https://media.glynlyon.com/g_alg01_2012/11/m802t5a.gif 0 - 5 6 - 10 11 - 15 16 - 20

OpenStudy (anonymous):

it looks wrong now HMMMMMMMMMMMMM wahts you opinion

OpenStudy (lucaz):

I don't know, what is this graph about?

OpenStudy (anonymous):

it doesnt say

OpenStudy (anonymous):

@phi

OpenStudy (anonymous):

it might actually be in 6-10.............cuz its using five bars instead of four and the 25% would shift over

OpenStudy (phi):

How many samples do you have total ? Add up the frequency of each bar.

OpenStudy (anonymous):

it might actually be in 6-10.............cuz its using five bars instead of four and the 25% would shift over am i correct in saying this and there is five i think

OpenStudy (anonymous):

yeh its 6-10 beacause 100/5 is 20 so yeh

OpenStudy (phi):

there are 5 in the first bar, 6 in the 2nd bar, and so on... add them all up

OpenStudy (anonymous):

34

OpenStudy (phi):

divide by 4 to get 8.5 the first quarter of the data is the first 8 ½ samples (ignore the fact we don't have fractions of samples)

OpenStudy (anonymous):

ok

OpenStudy (phi):

now we count: samples 1 to 5 are in the first bar samples 6 to 11 are in the second bar so 8.5 would fall within the second bar

OpenStudy (anonymous):

so it b like i said five comments ago

OpenStudy (anonymous):

excuse me 6

OpenStudy (phi):

yes, but if you don't get the idea of how to do it you are wasting your time.

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