/sci/ - Science & Math

[Anonymous No.3554553]

i do not understand it. I have the correct numbers to fill out the sample coefficient of correlation equation but its being difficult and giving me a number >1. This doesnt make fucking sense

1.95/(.714x2.70) = 1.01152

WTFFFFFFFFFUUUUUU

[Anonymous No.3554556]

[Anonymous No.3554559]

what the fuck is going on here

[Anonymous No.3554563]

inb4 OP realises he done goofed on something incredibly simple, but overlooked it.

[Anonymous No.3554570]

am i on fucking reddit

[Anonymous No.3554584]

>>3554563
trust me bro
i did not
r=cov(x,y)/(SxSy)

[Anonymous No.3554592]

>>3554584

could we see all your calculations? Not much good saying that you've gone wrong somewhere if we can't see your data...

[Anonymous No.3554606]

>>3554592
>>3554563

data is :
x:7,6,8,6.5,7
sum of x values:34.5
x mean:6.9
sd of x: 0.714

y:38,35,42,36,37
sum of y=188
y mean=37.6
sd of y=2.70185

sum of xy values:1305

Finding covariance of xy
1/4(1305-5*6.9*37.6)= Cov(x,y) = 1.95

Therefore
r= Cov(xy)/SxSy ;
r= 1.95/(.714x2.70)=1.01152

[Anonymous No.3554622]

>>3554606
OP here: sorry guys. >>3554563 was right i overlooked the standard deviation on x it was .741 not .714 wow.

pic related MFW i checked