For the following data (a) display the data in a scatter plot, (b) calculate the correlation...

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For the following data (a) display the data in a scatter plot, (b) calculate the correlation coefficient r, and (c) make a co

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Answer 1

Answer #1

Part b)

((N + ΣΧΥ) - ΣΧΣΥ)/((ΝΣ(Χ2) - (ΣΧ)2] (ΝΣ(Y2) – (ΣΥ)2)
$r = ( ( 6 * 37600 ) - 21 * 8450 ) / ( \sqrt{ ( 6 * 91 ) - ( 21 )^{2} )( 6 * 15842500 ) - ( 8450 )^{2} })$
r = 0.966

part c)

There is strong and positive correlation between age and vocabulary size.

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Answer 2

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