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ioda
3 years ago
7

Feedback:Correct answer

Mathematics
1 answer:
nikitadnepr [17]3 years ago
5 0
Correct me if I’m wrong but I think it’s C
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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

r = -352.05/ √3656.25 x 3122.66698

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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Concesion tables contain ratios that can be used to convert units of length, weight, or capacity. You must multiply the
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Answer:

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yard; the ratio of feet to yards is

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3 years ago
In a class if 20 students, 60% are girls. How many Students are girls?
seropon [69]
12 students are girls and 8 are boys.
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1 - (8 to the second power + 6)<br><br> Which do I do first 8+6 the then exponent or Vice versa?
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Find the surface area of the following figure. Round answers to the nearest tenths.<br> 11 m<br> 5 m
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Step-by-step explanation:

The equation would be 2πrh+2πr^2. If you just plug in the radius and height you will get 502.65. Round it up and you will get 502.7.

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