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2 years ago

What is a correlation coefficient?

Mathematics

2 answers:

kogti [31]2 years ago

8 0

A correlation coefficient is a number that indicates the direction in closeness of points of a line of best fit.

So it tells us the direction of the line of best fit and it tells us the closeness to the points of the line of best fit.

Ivan2 years ago

6 0

Answer:

a number between −1 and +1 calculated so as to represent the linear dependence of two variables or sets of data.

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Square root of 4×-1=5

borishaifa [10]

Answer:3/2

how i did this

 Add 11 to both sides.

4x=5+1

Simplify 5+15+1 to 66.

4x=6

Divide both sides by 4

x= 6/4

Simplify 6/4 to 3/2

Awnser

x=3/2

Sorry if not helpful just trying my best :)

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2 years ago

What is the sum of 8a<br> 7+ 5b2 – 2a2 and 7b2 + 66_<br> 20a + 3?

barxatty [35]

Answer:

Step-by-step explanation:

7+5b²-2a²+7b²+66-20a-3

first collect like terms

5b²+7b²-2a²-20a+7-3

12b²-2a²-20a+4

hope it's helpful

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3 years ago

Guests at a pizza party are seated at three tables. The small table has 5 seats and 2 pizzas. The medium table has 7 seats and 3

bagirrra123 [75]

Answer:

the 5 seated table with the 2 pizzas got more each.

Step-by-step explanation:

$\frac{5}{2} = 2\frac{1}{y2}$ pieces each

$\frac{7}{3} = 2\frac{1}{3}$ pieces each

$\frac{12}{5} = 2\frac{2}{5}$ pieces each

Now change the fractions s that they all have a common denominator.

$2\frac{1}{2} = 2\frac{15}{30}$

$2\frac{1}{3} = 2\frac{10}{30}$

$2\frac{2}{5} = 2\frac{15}{30}$

Thus meaning that the 5 seated table with the 2 pizzas got more each.

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3 years ago

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zysi [14]

Answer:

Step-by-step explanation:

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3 years ago

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What is 5x + 5 + 5x = -75

Dafna11 [192]

Answer:

-8

Step-by-step explanation:

first combine like terms 5x+5x=10x

then subtract 5 from -75= -80

divide -80 by 10= -8

you are left with -8=x

4 0

3 years ago