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Mathematics 7 Online
zarkam21:

Hwllppp

zarkam21:

1 attachment
ArcticFoxZX87:

what do you need help with

zarkam21:

its attached

ArcticFoxZX87:

its a chart from x an y

zarkam21:

@Vocaloid @Nnesha

zarkam21:

@Vocaloid

Vocaloid:

slope = r(sy/sx) where sy is the standard deviation of y sx is the standard deviation of x and r is the correlation coefficient

zarkam21:

find the mean of x and y right

Vocaloid:

Standard deviation please not mean

zarkam21:

for x

1 attachment
zarkam21:

for y

1 attachment
Vocaloid:

Good Use population standard deviation to calculate slope using the formula I described

zarkam21:

13/6.9=1.88

Vocaloid:

r(sy/sx)

Vocaloid:

Multiply that by r (given in the problem)

zarkam21:

1.88*0.96=1.80

Vocaloid:

Good that's it

Vocaloid:

Got to go I'll ge out for several hours

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