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777dan777 [17]
3 years ago
6

According to stigler and baranes (1988), ____ and ____ have a very special relationship because math skills " are not logically

constructed on the basis of abstract cognitive structures, but rather are forged out of a combination of previously acquired (or inherited) knowledge and skills, and new cultural input."
Social Studies
1 answer:
Lana71 [14]3 years ago
8 0
<span>Math and culture. One's cultural practices influence their mathematical skill. Continuous practice makes one better in the area of study making the two correlated. Also, an individual's mathematical abilities can be inherent from the parents. Input of skills and knowledge would be of more advantage.</span>
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3 years ago
Read 2 more answers
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Answer:

1. Co-variance= -1.2

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Explanation:

1.

Co-variance= Cov(x,y)= sum[(x-xbar)(y-ybar)]/n

xbar=sumx/n=32/5=6.4

ybar=sumy/n=35/5=7

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2.

correlation coefficient=r

r=\frac{sum(x-xbar)(y-ybar)}{\sqrt{sum(x-xbar)^2sum(y-ybar)^2} }

x 7 8 5 3 9

x-xbar 0.6 1.6 -1.4 -3.4 2.6

y 7 5 9 7 7

y-ybar 0 -2 2 0 0

(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0

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(y-ybar)²  0 4 4 0 0

r=\frac{-6}{\sqrt{23.2(8)} }

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3. Since the value of correlation coefficient is negative and less than 0.5 , so, we can say that there is weak negative relationship between x and y.

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Explanation:

hope this helps :) have a nice day !!

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