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Dima020 [189]
2 years ago
9

What is positive correlation?

Mathematics
1 answer:
igor_vitrenko [27]2 years ago
4 0
In a graph, it is when two variables move in an upwards direction.
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Determine the type of correlation that exists in the given data set. Age (years) 23 45 39 74 63 52 59 28 35 11 26 49 IQ 76 82 11
Lyrx [107]

Answer:

B -0.104

Step-by-step explanation:

Step 1: Write the formula for correlation

r =    total xy

√Total x² x Total y²

Step 2: Make a table to calculate all values

Table is attached in the picture below

Step 3 : Solve

Mean of X = Total X/ Total number of X

                  = 507/12

                  = 106.33

Mean of Y = Total Y/ Total number of Y

                  = 1276/ 12  

                  = 42.25

r =    total xy

√Total x² x Total y²

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r = -0.104

-0.104 is negative

This negative correlation means there is an inverse correlation between variables.

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3 years ago
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